Upgraded from 1.1.1 to 1.1.3. Everything seemed to be working fine but all of a sudden got the error

A fatal error has occurred:

Can't call method "fetchrow" on an undefined value at /www/davidd/cgi-bin/forum/admin/GForum/Category.pm line 322.

Please enable debugging in setup for more details.





GT::SQL::error = Failed to execute query: 'SELECT forum_id_fk,COUNT(*) FROM gforum_Post USE INDEX (p_rfmp) WHERE ( ( ( forum_id_fk = ? AND post_time > ? ) OR ( forum_id_fk = ? AND post_time > ? ) OR ( forum_id_fk = ? AND post_time > ? ) OR ( forum_id_fk = ? AND post_time > ? ) OR ( forum_id_fk = ? AND post_time > ? ) OR ( forum_id_fk = ? AND post_time > ? ) ) AND user_id_fk = ? AND post_root_id = ? )
GROUP BY forum_id_fk' Reason: You have an error in your SQL syntax near 'USE INDEX (p_rfmp) WHERE ( ( ( forum_id_fk = '5' AND post_time > 1015431765 ) O' at line 1

Everything was working fine with 1.1.1 - Any ideas, I have read some of the other bug reports but none seem too similar...