DedeCMS Error Warning!

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Error page: /tags.php?/%C8%E7%BA%CE%B7%C0%B7%B6%B8%F1%CA%BD%CC%F5%BF%EE/
Error infos: Illegal mix of collations (gbk_chinese_ci,IMPLICIT) and (utf8_general_ci,COERCIBLE) for operation 'like'
Error sql: Select * From `dede_tagindex` where tag like 'ηʽ' limit 0,1;

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