Number of Signups Allowed Disappeared

I needed to limit signups for all events to 10 attendees. Upgraded to 5.x-2.2, ran upgrade.php and everything is running smooth. I created a few events and assigned a max number and it is working like it should.

I go to create a new event this evening and the field for entering number of signups is gone. I go and look at my older events and they are wide open to unlimited number of sign ups. May be unrelated or may not be, but when cron tasks run I get:

user warning: Unknown column 's.completed' in 'where clause' query: SELECT s.nid FROM signup s INNER JOIN event e ON e.nid = s.nid WHERE s.completed = 0 AND e.event_start < 1194280324 in /home/user/public_html/includes/database.mysql.inc on line 172.

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