or download this
30.08.2016 08:00:00.004 *ERROR* [pool-7-thread-5] com.day.cq.reporting
+.impl.snapshots.SnapshotServiceImpl Error accessing repository during
+ creation of report snapshot data
javax.jcr.LoginException: Cannot derive user name for bundle com.day.c
+q.cq-reporting [313] and sub service null