[JimmXinu]

Originally Posted by jklly12

I went in to change the ini to http://www.twcslibrary.net/
and it worked but it wont save it for some reason

Calibre 2.20 was released with a bug. Kovid put a fixed version up, but didn't change the version. Go download and install calibre 2.20 again. FFDL won't be able to save any config changes until you do. Ditto and changes to Reading List plugin lists.

Originally Posted by jklly12

Exception: Trying to set entry (dateUpdated) value(None) to column (#updated) failed ('NoneType' object is not iterable)

This tell us that there was an error inside the call to calibre's db.set_custom() method while trying to use dateUpdated. I'm able to download that story with a dateUpdated custom column just fine.

That, and the fact you say it happens to 'any story from TWCS' suggests that it's a problem with your settings or set up.

I suggest you get the current calibre 2.20 installed, update to the most recent FFDL test version (here as of this posting) and review your settings. You also might try creating a temporary test library and download it there to prove it's the settings.