A Log Reader task has encountered an unexpected logic error, and must terminate. The specific reason for the error is indicated in the message text. If the module shown in the message is EDMLPOPU then this is related to Post‑Log merge processing. The reason can be one of:
Unknown ECB Posted
Logical Reader Error
The Log Reader subtask will terminate, and the corresponding Log Reader job will also terminate.
Investigate the cause of the error indicated, and if possible, restart the Log Reader job. If the Log Reader job will not restart, contact Informatica Global Customer Support.