Problem accessing /. Reason:
AuthenticationSupport service missing. Cannot authenticate request.
rajs73651622 This is a very generic message and definitely not enough to point out the problem. However, this may signify some sort of repository inconsistency.
I would suggest you to check for SegmentNotFound errors in the error.log file and in case you find those you can refer to  in order to resolve the segment store inconsistencies.
 Fix Inconsistencies in the repository when SegmentNotFound Issue is reported in AEM 6.x