@Sudheer_Sundalam Thanks for your reply, actually reindex is not required but I did that too, still not working.

We have upgraded from 6.5.13 to 6.5.16 and after that page activation/publish and rollout page is not working. Does anyone had this issue and fixed it already? Please help.Error in the log:POST /libs/wcm/core/content/reference.json HTTP/1.1] org.apache.sling.engine.impl.SlingRequestProcessorImpl ser...