In this post, you’ll learn about the COBOL runtime Error Code 071 and the reason why you are receiving it
COBOL Error Code :
071
Reason for this Error in COBOL
Bad indexed file format (Fatal) -You are either using a file which has been corrupted, or there is an internal system error. -If the disk you are using is corrupt, rerun your program using your backup copy of the disk. If this is not the cause of the error then you should contact Technical Support who will help you find the cause of your error and how it can be rectified.