Hello - I have recently created a package using Adobe Package Manager. However, I cannot see any packages in the Package Manager after I created a package.

Checked error.log it says:
27.03.2018 17:50:11.814 *WARN* [qtp871638439-2633] org.eclipse.jetty.server.HttpChannel Could not send response error 500: java.lang.IllegalStateException: Committed
27.03.2018 17:50:17.680 *ERROR* [qtp871638439-2633] com.day.crx.packmgr.impl.servlets.ListServlet Error while retrieving infos: javax.jcr.RepositoryException: Invalid name or path: /etc/packages/content/forms//.snapshot/climes_Form-1.0
27.03.2018 17:50:17.680 *ERROR* [qtp871638439-2633] org.apache.felix.http.jetty Exception while processing request to /crx/packmgr/list.jsp (java.lang.IllegalStateException: Committed)
java.lang.IllegalStateException: Committed
at org.eclipse.jetty.server.Response.resetBuffer(Response.java:1242)
at javax.servlet.ServletResponseWrapper.resetBuffer(ServletResponseWrapper.java:195)
at org.apache.felix.http.base.internal.dispatch.ServletResponseWrapper.sendError(ServletResponseWrapper.java:67)
at org.apache.felix.http.base.internal.dispatch.ServletResponseWrapper.sendError(ServletResponseWrapper.java:61)
at com.day.crx.packmgr.impl.servlets.ListServlet.doService(ListServlet.java:104)
at com.day.crx.packmgr.impl.AbstractServlet.service(AbstractServlet.java:54)
at com.day.crx.packmgr.impl.MainServlet.doService(MainServlet.java:157)
at com.day.crx.packmgr.impl.MainServlet.service(MainServlet.java:134)
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.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)