You don't need to set up a crash log, they don't need to be enabled. If the receiver crashes, a crash log will be created in /home/root/logs. That is the default location. Double check if you previously changed the location. Go to the logs menu and see what it says. Maybe post a screenshot/picture.
In any case, nobody is going to look into a crash of older image too deeply. Consider updating your image or flashing newest one and then restoring settings.