Cause
A change record in the redo log contains lengths that do not add up to a consistent value. The log is corrupted in some way.
A change record in the redo log contains lengths that do not add up to a consistent value. The log is corrupted in some way.
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/11157759
https://community.oracle.com/message/508468
https://community.oracle.com/message/1177595
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