What is file status 9 and status key 13 in VSAM?

What is file status 9 and status key 13 in VSAM? I am getting an error while accessing a VSAM file in COBOL  program, When I debug I found that the file status and status key as 9 and 13 respectively. I am new to mainframes and I am unable to figure out what could be the reason for this. “; ; ; ;