Ошибка "There appears to be an error with the database."

[Isco]

Доброго времени суток. Установил IPB 3.4.6 и при переходе в один из форумов, выходит такая ошибка: There appears to be an error with the database.

Последняя SQL ошибка (Сегодня, 09:21)
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
 Date: Sat, 14 Mar 2015 09:21:25 +0000
 Error: 1267 - Illegal mix of collations (cp1251_general_ci,IMPLICIT) and (utf8_general_ci,COERCIBLE) for operation '='
 IP Address: 94.143.198.138 - /forum/index.php?/forum/2-forum/
 ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
 mySQL query error: SELECT t.*,xxx.* FROM topics t  LEFT JOIN core_tags_cache xxx ON ( xxx.tag_cache_key=MD5(CONCAT('forums',';','topics',';',t.tid)) )   WHERE t.forum_id=2 AND t.pinned IN (0,1) AND ( t.approved IN (1,0,-1) ) ORDER BY t.pinned DESC,  t.last_post DESC LIMIT 0,30
 .--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------.
 | File                                                                       | Function                                                                      | Line No.          |
 |----------------------------------------------------------------------------+-------------------------------------------------------------------------------+-------------------|
 | admin/applications/forums/modules_public/forums/forums.php                 | [public_forums_forums_forums].renderForum                                     | 457               |
 '----------------------------------------------------------------------------+-------------------------------------------------------------------------------+-------------------'
 | admin/applications/forums/modules_public/forums/forums.php                 | [public_forums_forums_forums].showForum                                       | 147               |
 '----------------------------------------------------------------------------+-------------------------------------------------------------------------------+-------------------'
 | admin/sources/base/ipsController.php                                       | [public_forums_forums_forums].doExecute                                       | 306               |
 '----------------------------------------------------------------------------+-----------------------------------------------------------

В чем проблема, подскажите пожалуйста? 2 раза переустанавливал форум, ошибка та же.

[IAF]

Isco, 

Кодировку БД смените.

[Isco]

Isco, 

Кодировку БД смените.

На cp1251_general_ci?

[WOLF]

нет, utf8_general_ci