It can get complicated.
Make a copy of your current spreadsheet.
Look through the revision history until you find a hidden sheet called DO NOT DELETE - AutoCrat Job Settings.
Restore that version of the spreadsheet and make a copy of DO NOT DELETE - AutoCrat Job Settings
Restore the most recent version and copy DO NOT DELETE - AutoCrat Job Settings into it.
Information about the autocrat merge jobs is contained in DO NOT DELETE - AutoCrat Job Settings
If you have an active Form feeding the spreadsheet, you need to turn the form off first.
Think through the steps before you start. You should always have your backup copy.