CLI0523 TDP has ended
The TDP associated with the request has ended, so processing of the request is terminated. The request may or may not have been sent to the Teradata Database, and if sent may or may not have been completed.
This error is generated by TDP, normally when the TDP ended, but possibly when the same TDP was again started.
When the TDP is once again available, if the request was updating a Database then the status of that update should be investigated, continuing as appropriate.