I'm trying to create a content fragment which has buttons in it. I'm not able to find such a data type. How is it achievable?

Hi all,I'm using AEM version 6.3.0.2 and created a component using sightly and JS use API. I keep getting this error. Its the same with other components as well. org.apache.sling.engine.impl.SlingRequestProcessorImpl service: Uncaught SlingExceptionorg.apache.sling.scripting.sightly.SightlyException...