Problem after conversion (MYSQL)

[wLTD]

Ok, that fixed that bug. But I found another two:

Whenever someone posts, they cant see their own posts

And when I edit a user:

Database error in vBulletin 3.6.5:

Invalid SQL:

SELECT COUNT(*) AS users
FROM user
WHERE userid <> 581
AND
(
usergroupid IN(6)
OR FIND_IN_SET('6', membergroupids)
);

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 @ 10:07:56 AM
Script : http://www.warezltd.net/forums/admin....php?do=update
Referrer : http://www.warezltd.net/forums/admin...?do=edit&u=581
IP Address : 24.161.120.139
Username : nincb123
Classname : vb_database