Editing subscription gives sql error

[KozmoK]

After upgrading to 3.7.4 - 1 I can no longer update peoples subscriptions:

Database error in vBulletin 3.7.4:

Invalid SQL:

DELETE FROM mysql_access
WHERE forumid IN () AND
userid = 2869;

MySQL Error : You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ') AND
userid = 2869' at line 2

The only thing different is I renamed my forums/admin to forums/cpadmin - but I did that 2 versions ago.