Problem after conversion (MYSQL)

[wLTD]

I converted from IPB 2.2.1 to Vbulletin 3.6.5

Now, whenever I want to delete forums, I have to hide them because I am unable to physically delete them.

When I try to delete them, I get this SQL error:

Database error in vBulletin 3.6.5:

Invalid SQL:
SELECT forumid FROM forum WHERE FIND_IN_SET('113', parentlist);

MySQL Error : Illegal mix of collations (latin1_swedish_ci,COERCIBLE) and (utf8_general_ci,IMPLICIT) for operation 'find_in_set'
Error Number : 1267
Date : Sunday, April 1st 2007 @ 07:37:20 AM
Script : http://www.wltd.net/forums/admincp/forum.php?do=kill
Referrer : http://www.wltd.net/forums/admincp/f...emove&f=113&s=
Username : nincb123
Classname : vb_database

Thanks for the help!