Shortdump SPOOL_INTERNAL_ERROR

What happened?
The current ABAP program had to be terminated because the ABAP processor detected an internal system error. The current ABAP program "ZEDI_FTP_GET_FILE" had to be terminated because the ABAP processor discovered an invalid system state.

This is not a regular shortump. It's because there is something wrong with our program ZEDI_FTP_GET_FILE. I do not have time to describe the problem and I'm not an ABAP'er, but in my case I know how to solve this;)
I had to delete old spool requests. Spool requests that was 1-2 years old. To do that you have to go to transaction SP01 and search the old request. Mark and delte.