This is likely and issue with the ftp settings needing to be changed, as you mentioned.
Unfortunately there's not a lot we can do to help here, because we just don't know the settings required by your specific league. So the best bet is to go over them with your commissioner.
If you still have trouble after that, if you can turn on debug mode and run the process and post your resulting trace file, that might give us an idea of what's going on.
https://support.ootpdevelopments.com...P%20debug%20(5).