UBB.Developers Forums UBB.threads 6 Bug Reports ThreadsDev Bug?

I've had no trouble here for weeks, but now keep getting "access denied" and database errors when I try to view a forum or thread.

I have deleted all my threadsdev cookies... and logged back in. I'm on a Mac with IE. Havent' had this trouble on my forums with 6.0.1.

But sometimes when I click into a forum or thread, I get the access denied error, and this database error at the top:

code:

SQL ERROR: Unable to do_query: SELECT Bo_Title,Bo_Write_Perm,Bo_CatName,Bo_Cat,Bo_Reply_Perm,Bo_Read_Perm,Bo_Moderators,Bo_Markup,Bo_HTML,Bo_SpecialHeader,Bo_StyleSheet FROM w3t_Boards WHERE Bo_Keyword = 'modsuggestions' AND () 
You have an error in your SQL syntax near ') ' at line 5
Warning: Supplied argument is not a valid MySQL result resource in /home/virtual/site2/fst/var/www/html/threads/php/mysql.inc.php on line 83

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Usually backing up and trying again works fine.