CASSI1411E Error, could not inform REM of animate server termination, rc = return-code

The attempt to inform the region manager of the animate server's termination failed due to an error in DosExecPgm.
System Action:
The region manager will not know that the animate server has terminated. If a terminal is attached to that server it will wait indefinitely in a X-SYSTEM state.
Module:
dfhecics
Destination:
Console and standard error