CASSI1420S Temporary storage/transient data file name TS-TD-name is illegal

The name of the temporary storage/transient data file as specified in the SIT is illegal. The temporary storage/transient data file names are as follows: TXTSNR - temporary storage non-recoverable TXTSRC - temporary storage recoverable TXTDNR - transient data non-recoverable TXTDRC - transient data recoverable.
System Action:
The system file can not be opened successfully so the region initialization will be unsuccessful.
Resolution:
Correct the name given in the SIT, making sure that no filename is given, only the path and that the directory exists.
Module:
dfhginit(dfhcptdi)
Destination:
Console and standard error