-6020 FFFFE87C   ERR BAD RFL SERIAL NUM

Source:  eDirectory

Explanation:  A serial number in the roll-forward log does not match either the RFL serial number stored in the database or in the prior RFL file.

Possible Cause:  This error usually means that an attempt is being made to replay an RFL from another database during a database restore operation.

Action:  Locate the correct RFL file and retry the operation.