Dear Dennise,
hope your issue is resolved, I found the convenient way to resolve this...
Start the SPAM in front end it will ask you to apply a prerequisite note :- 0001680583 Field names for tables and views with more than 16 char....
once the note is applied repeat the SPAM it will work...
If your not able to login to system itself... restore the last back up and repeat the SPAM
again....
Hope this will help some one to get the issue resolved
Regards
Amar Ghuge