In this post, you’ll learn about the COBOL runtime Error Code 033 and the reason why you are receiving it
COBOL Error Code :
033
Reason for this Error in COBOL
Physical I-O error (Fatal) -You have a hardware error of some type. Perhaps you have not put a disk in the relevant drive or you might have tried to WRITE to a disk but the processor detected hardware interface has failed.
-You should try to correct the fault in your hardware; for example put a disk in the necessary drive.