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SOLVED

Cannot get DefaultSlingScript: null

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Level 2

Hi guys,

I'm maintaining a site that I didn't write so I don't understand the purpose of all of the code. Anyway...

I'm seeing a stacktrace (see end of post) in the production logs and I'd like to fix it.  If I navigate to /content/com/products/cinnamon-crumb-coffee-cake-whole/jcr:content, there is no cloudservices node (hence I presume the exception), but where is it coming from? If I search the code base, see this line:

<sly data-sly-resource="${'cloudservices' @ resourceType='cq/cloudserviceconfigs/components/servicecomponents'}"></sly>

in footer.html

So that's probably what does it, but what does that line actually do? No idea. And worse, that exception only occurs intermittently. Any help would be appreciated.

2019-02-15 10:01:38,285 ERROR [23.127.196.153 [1550246497942] GET /content/com/products/cinnamon-crumb-coffee-cake-whole.html HTTP/1.1] com.adobe.acs.commons.wcm.impl.ComponentErrorHandlerImpl Cannot get DefaultSlingScript: null

org.apache.sling.api.SlingException: Cannot get DefaultSlingScript: null

at org.apache.sling.scripting.core.impl.DefaultSlingScript.service(DefaultSlingScript.java:510)

at org.apache.sling.engine.impl.request.RequestData.service(RequestData.java:552)

at org.apache.sling.engine.impl.filter.SlingComponentFilterChain.render(SlingComponentFilterChain.java:44)

at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:77)

at com.day.cq.wcm.core.impl.WCMDeveloperModeFilter.doFilter(WCMDeveloperModeFilter.java:119)

at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:68)

at com.adobe.acs.commons.wcm.impl.ComponentErrorHandlerImpl.doFilterWithErrorHandling(ComponentErrorHandlerImpl.java:233)

at com.adobe.acs.commons.wcm.impl.ComponentErrorHandlerImpl.doFilter(ComponentErrorHandlerImpl.java:214)

at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:68)

at com.day.cq.wcm.core.impl.WCMDebugFilter.doFilter(WCMDebugFilter.java:138)

at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:68)

at org.apache.sling.dynamicinclude.IncludeTagFilter.doFilter(IncludeTagFilter.java:71)

at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:68)

at com.day.cq.wcm.core.impl.WCMComponentFilter.doFilter(WCMComponentFilter.java:278)

at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:68)

at com.panerabread.core.services.sdi.SuffixFilter.doFilter(SuffixFilter.java:97)

at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:68)

at com.day.cq.personalization.impl.TargetComponentFilter.doFilter(TargetComponentFilter.java:96)

at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:68)

at com.panerabread.core.services.akamai.filter.AkamaiAssetFilter.doFilter(AkamaiAssetFilter.java:52)

at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:68)

at org.apache.sling.engine.impl.SlingRequestProcessorImpl.processComponent(SlingRequestProcessorImpl.java:282)

at org.apache.sling.engine.impl.SlingRequestProcessorImpl.dispatchRequest(SlingRequestProcessorImpl.java:322)

at org.apache.sling.engine.impl.request.SlingRequestDispatcher.dispatch(SlingRequestDispatcher.java:211)

at org.apache.sling.engine.impl.request.SlingRequestDispatcher.include(SlingRequestDispatcher.java:104)

at com.day.cq.wcm.core.impl.WCMComponentFilter$ForwardRequestDispatcher.include(WCMComponentFilter.java:516)

at com.adobe.cq.sightly.WCMScriptHelper.includeResource(WCMScriptHelper.java:179)

at com.adobe.cq.sightly.WCMScriptHelper.includeResource(WCMScriptHelper.java:134)

at com.adobe.cq.sightly.internal.extensions.ResourceExtension.call(ResourceExtension.java:147)

at org.apache.sling.scripting.sightly.impl.engine.runtime.RenderContextImpl.call(RenderContextImpl.java:69)

at org.apache.sling.scripting.sightly.apps.panerabread.components.structure.base_002d_page.footer_html$1.render(footer_html.java:112)

at org.apache.sling.scripting.sightly.java.compiler.RenderUnit.render(RenderUnit.java:48)

at org.apache.sling.scripting.sightly.java.compiler.RenderUnit.callUnit(RenderUnit.java:85)

at org.apache.sling.scripting.sightly.apps.panerabread.components.structure.base_002dpage.base002dpage_html.render(base002d_page_html.java:137)

at org.apache.sling.scripting.sightly.java.compiler.RenderUnit.render(RenderUnit.java:48)

at org.apache.sling.scripting.sightly.impl.engine.SightlyCompiledScript.eval(SightlyCompiledScript.java:61)

at org.apache.sling.scripting.core.impl.DefaultSlingScript.call(DefaultSlingScript.java:386)

at org.apache.sling.scripting.core.impl.DefaultSlingScript.eval(DefaultSlingScript.java:184)

at org.apache.sling.scripting.core.impl.DefaultSlingScript.service(DefaultSlingScript.java:491)

at org.apache.sling.engine.impl.request.RequestData.service(RequestData.java:552)

at org.apache.sling.engine.impl.filter.SlingComponentFilterChain.render(SlingComponentFilterChain.java:44)

at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:77)

at com.day.cq.wcm.core.impl.WCMDeveloperModeFilter.doFilter(WCMDeveloperModeFilter.java:119)

at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:68)

at com.adobe.acs.commons.wcm.impl.ComponentErrorHandlerImpl.doFilter(ComponentErrorHandlerImpl.java:217)

at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:68)

at com.day.cq.wcm.core.impl.WCMDebugFilter.doFilter(WCMDebugFilter.java:138)

at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:68)

at org.apache.sling.dynamicinclude.IncludeTagFilter.doFilter(IncludeTagFilter.java:71)

at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:68)

at com.day.cq.wcm.core.impl.WCMComponentFilter.doFilter(WCMComponentFilter.java:278)

at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:68)

at com.panerabread.core.services.sdi.SuffixFilter.doFilter(SuffixFilter.java:97)

at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:68)

at com.day.cq.personalization.impl.TargetComponentFilter.doFilter(TargetComponentFilter.java:96)

at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:68)

at com.panerabread.core.services.akamai.filter.AkamaiAssetFilter.doFilter(AkamaiAssetFilter.java:52)

at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:68)

at org.apache.sling.engine.impl.SlingRequestProcessorImpl.processComponent(SlingRequestProcessorImpl.java:282)

at org.apache.sling.engine.impl.SlingRequestProcessorImpl.dispatchRequest(SlingRequestProcessorImpl.java:322)

at org.apache.sling.engine.impl.request.SlingRequestDispatcher.dispatch(SlingRequestDispatcher.java:211)

at org.apache.sling.engine.impl.request.SlingRequestDispatcher.include(SlingRequestDispatcher.java:104)

at com.day.cq.wcm.core.impl.WCMComponentFilter$ForwardRequestDispatcher.include(WCMComponentFilter.java:516)

at org.apache.jsp.libs.cq.Page.Page_jsp._jspService(Page_jsp.java:106)

at org.apache.sling.scripting.jsp.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:725)

at org.apache.sling.scripting.jsp.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:502)

at org.apache.sling.scripting.jsp.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:449)

at org.apache.sling.scripting.jsp.JspScriptEngineFactory.callJsp(JspScriptEngineFactory.java:346)

at org.apache.sling.scripting.jsp.JspScriptEngineFactory.access$100(JspScriptEngineFactory.java:101)

at org.apache.sling.scripting.jsp.JspScriptEngineFactory$JspScriptEngine.eval(JspScriptEngineFactory.java:607)

at org.apache.sling.scripting.core.impl.DefaultSlingScript.call(DefaultSlingScript.java:388)

at org.apache.sling.scripting.core.impl.DefaultSlingScript.eval(DefaultSlingScript.java:184)

at org.apache.sling.scripting.core.impl.DefaultSlingScript.service(DefaultSlingScript.java:491)

at org.apache.sling.engine.impl.request.RequestData.service(RequestData.java:552)

at org.apache.sling.engine.impl.filter.SlingComponentFilterChain.render(SlingComponentFilterChain.java:44)

at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:77)

at com.adobe.acs.commons.wcm.impl.ComponentErrorHandlerImpl.doFilter(ComponentErrorHandlerImpl.java:192)

at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:68)

at com.day.cq.wcm.core.impl.WCMDebugFilter.doFilter(WCMDebugFilter.java:138)

at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:68)

at com.day.cq.wcm.core.impl.WCMComponentFilter.filterRootInclude(WCMComponentFilter.java:375)

at com.day.cq.wcm.core.impl.WCMComponentFilter.doFilter(WCMComponentFilter.java:190)

at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:68)

at com.day.cq.personalization.impl.TargetComponentFilter.doFilter(TargetComponentFilter.java:96)

at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:68)

at com.panerabread.core.services.akamai.filter.AkamaiAssetFilter.doFilter(AkamaiAssetFilter.java:52)

at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:68)

at org.apache.sling.engine.impl.SlingRequestProcessorImpl.processComponent(SlingRequestProcessorImpl.java:282)

at org.apache.sling.engine.impl.filter.RequestSlingFilterChain.render(RequestSlingFilterChain.java:49)

at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:77)

at org.apache.sling.dynamicinclude.SyntheticResourceFilter.doFilter(SyntheticResourceFilter.java:64)

at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:68)

at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:73)

at com.adobe.cq.social.ugcbase.security.impl.SaferSlingPostServlet.doFilter(SaferSlingPostServlet.java:114)

at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:68)

at com.day.cq.dam.core.impl.assetlinkshare.AdhocAssetShareAuthHandler.doFilter(AdhocAssetShareAuthHandler.java:436)

at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:68)

at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:73)

at com.day.cq.dam.core.impl.servlet.ActivityRecordHandler.doFilter(ActivityRecordHandler.java:154)

at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:68)

at com.adobe.granite.rest.impl.servlet.ApiResourceFilter.doFilter(ApiResourceFilter.java:70)

at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:68)

at com.adobe.granite.requests.logging.impl.RequestLoggerImpl.doFilter(RequestLoggerImpl.java:126)

at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:68)

at com.adobe.granite.rest.assets.impl.AssetContentDispositionFilter.doFilter(AssetContentDispositionFilter.java:96)

at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:68)

at com.adobe.granite.csrf.impl.CSRFFilter.doFilter(CSRFFilter.java:217)

at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:68)

at org.apache.sling.security.impl.ContentDispositionFilter.doFilter(ContentDispositionFilter.java:180)

at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:68)

at com.day.cq.wcm.core.impl.AuthoringUIModeServiceImpl.doFilter(AuthoringUIModeServiceImpl.java:292)

at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:68)

at com.day.cq.wcm.mobile.core.impl.redirect.RedirectFilter.doFilter(RedirectFilter.java:248)

at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:68)

at org.apache.sling.dynamicinclude.CacheControlFilter.doFilter(CacheControlFilter.java:62)

at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:68)

at org.apache.sling.engine.impl.debug.RequestProgressTrackerLogFilter.doFilter(RequestProgressTrackerLogFilter.java:107)

at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:68)

at com.adobe.cq.social.commons.cors.CORSAuthenticationFilter.doFilter(CORSAuthenticationFilter.java:91)

at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:68)

at com.day.cq.wcm.foundation.forms.FormsHandlingServletHelper.handleFilter(FormsHandlingServletHelper.java:221)

at com.day.cq.wcm.foundation.forms.impl.FormsHandlingServlet.doFilter(FormsHandlingServlet.java:138)

at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:68)

at com.adobe.granite.optout.impl.OptOutFilter.doFilter(OptOutFilter.java:76)

at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:68)

at com.day.cq.wcm.foundation.forms.FormsHandlingServletHelper.handleFilter(FormsHandlingServletHelper.java:221)

at com.adobe.cq.wcm.core.components.internal.servlets.CoreFormHandlingServlet.doFilter(CoreFormHandlingServlet.java:131)

at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:68)

at com.day.cq.wcm.core.impl.WCMRequestFilter.doFilter(WCMRequestFilter.java:90)

at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:68)

at com.adobe.cq.mcm.campaign.servlets.CampaignCopyTracker.doFilter(CampaignCopyTracker.java:100)

at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:68)

at org.apache.sling.rewriter.impl.RewriterFilter.doFilter(RewriterFilter.java:83)

at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:68)

at com.adobe.granite.httpcache.impl.InnerCacheFilter.doFilter(InnerCacheFilter.java:81)

at com.adobe.granite.httpcache.impl.InnerCacheFilter.doFilter(InnerCacheFilter.java:60)

at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:68)

at org.apache.sling.i18n.impl.I18NFilter.doFilter(I18NFilter.java:138)

at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:68)

at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:73)

at com.adobe.granite.resourceresolverhelper.impl.ResourceResolverHelperImpl.doFilter(ResourceResolverHelperImpl.java:83)

at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:68)

at org.apache.sling.engine.impl.SlingRequestProcessorImpl.doProcessRequest(SlingRequestProcessorImpl.java:151)

at org.apache.sling.engine.impl.SlingMainServlet.service(SlingMainServlet.java:219)

at org.apache.felix.http.base.internal.handler.ServletHandler.handle(ServletHandler.java:85)

at org.apache.felix.http.base.internal.dispatch.InvocationChain.doFilter(InvocationChain.java:79)

at com.adobe.granite.cors.impl.CORSHandler.doFilter(CORSHandler.java:118)

at org.apache.felix.http.base.internal.handler.FilterHandler.handle(FilterHandler.java:135)

at org.apache.felix.http.base.internal.dispatch.InvocationChain.doFilter(InvocationChain.java:74)

at com.adobe.granite.license.impl.LicenseCheckFilter.doFilter(LicenseCheckFilter.java:308)

at org.apache.felix.http.base.internal.handler.FilterHandler.handle(FilterHandler.java:135)

at org.apache.felix.http.base.internal.dispatch.InvocationChain.doFilter(InvocationChain.java:74)

at org.apache.felix.http.sslfilter.internal.SslFilter.doFilter(SslFilter.java:96)

at org.apache.felix.http.base.internal.handler.FilterHandler.handle(FilterHandler.java:135)

at org.apache.felix.http.base.internal.dispatch.InvocationChain.doFilter(InvocationChain.java:74)

at org.apache.sling.security.impl.ReferrerFilter.doFilter(ReferrerFilter.java:295)

at org.apache.felix.http.base.internal.handler.FilterHandler.handle(FilterHandler.java:135)

at org.apache.felix.http.base.internal.dispatch.InvocationChain.doFilter(InvocationChain.java:74)

at org.apache.sling.i18n.impl.I18NFilter.doFilter(I18NFilter.java:138)

at org.apache.felix.http.base.internal.handler.FilterHandler.handle(FilterHandler.java:135)

at org.apache.felix.http.base.internal.dispatch.InvocationChain.doFilter(InvocationChain.java:74)

at org.apache.sling.featureflags.impl.FeatureManager.doFilter(FeatureManager.java:116)

at org.apache.felix.http.base.internal.handler.FilterHandler.handle(FilterHandler.java:135)

at org.apache.felix.http.base.internal.dispatch.InvocationChain.doFilter(InvocationChain.java:74)

at org.apache.sling.engine.impl.log.RequestLoggerFilter.doFilter(RequestLoggerFilter.java:72)

at org.apache.felix.http.base.internal.handler.FilterHandler.handle(FilterHandler.java:135)

at org.apache.felix.http.base.internal.dispatch.InvocationChain.doFilter(InvocationChain.java:74)

at org.apache.felix.http.base.internal.dispatch.Dispatcher.dispatch(Dispatcher.java:128)

at org.apache.felix.http.base.internal.dispatch.DispatcherServlet.service(DispatcherServlet.java:49)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:725)

at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:812)

at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:587)

at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:221)

at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1127)

at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:515)

at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:185)

at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1061)

at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)

at org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:215)

at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:97)

at org.eclipse.jetty.server.Server.handle(Server.java:499)

at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:311)

at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:257)

at org.eclipse.jetty.io.AbstractConnection$2.run(AbstractConnection.java:544)

at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:635)

at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:555)

at java.lang.Thread.run(Thread.java:748)

Caused by: java.lang.NullPointerException: null

2019-02-15 10:01:38,286 INFO [23.127.196.153 [1550246497942] GET /content/com/products/cinnamon-crumb-coffee-cake-whole.html HTTP/1.1] com.adobe.acs.commons.wcm.impl.ComponentErrorHandlerImpl ACS AEM Commons Component-Level Error Handling trapped error for: /content/com/products/cinnamon-crumb-coffee-cake-whole/jcr:content/cloudservices

1 Accepted Solution

Avatar

Correct answer by
Level 10

This code is using a cloud service which must be configured in the root page pointing to either /etc/cloudservices/<service>  or /conf/<tenant/global>/settings/cloudservices. Probably cloud service doesn't work/is not configured correctly or throws some error which doesn't get bubbled up and is handled gracefully using ACS Component Error Handler

first check the cloud service configurations and test if it works fine

second check the ErrorHandler configuration and test if it works fine and displays error as expected.

You should definitely find next steps when you perform these activities...

cloud service-

Check the source here - acs-aem-commons/ComponentErrorHandlerImpl.java at master · Adobe-Consulting-Services/acs-aem-commons...

View solution in original post

1 Reply

Avatar

Correct answer by
Level 10

This code is using a cloud service which must be configured in the root page pointing to either /etc/cloudservices/<service>  or /conf/<tenant/global>/settings/cloudservices. Probably cloud service doesn't work/is not configured correctly or throws some error which doesn't get bubbled up and is handled gracefully using ACS Component Error Handler

first check the cloud service configurations and test if it works fine

second check the ErrorHandler configuration and test if it works fine and displays error as expected.

You should definitely find next steps when you perform these activities...

cloud service-

Check the source here - acs-aem-commons/ComponentErrorHandlerImpl.java at master · Adobe-Consulting-Services/acs-aem-commons...