Cause
A change vector in the redo log failed validation checks.
A change vector in the redo log failed validation checks.
Do recovery with a good version of the log or do time based recovery up to the indicated time.
Try the following links for this error:
http://docs.oracle.com/cd/E16655_01/server.121/e26079/e0.htm
https://community.oracle.com/message/3167463
https://community.oracle.com/message/2445663
https://community.oracle.com/message/10118836
https://community.oracle.com/message/2441713
https://community.oracle.com/message/2187106
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