DB Error: unknown error

SELECT * FROM ABLOG_user ,ABLOG_tag ,ABLOG_news LEFT JOIN ABLOG_holiday ON ABLOG_news.newsDate = ABLOG_holiday.holidayDate WHERE ABLOG_user.userID = ABLOG_news.userID AND newsStatus=1 AND newsDate <= '2008-09-09' AND newsTimeStamp <= 1713421413 AND ABLOG_tag.newsID=ABLOG_news.newsID AND ABLOG_tag.tag = 'þÁŽ½VþÁŽ½þÁŽ½þÁŽ½NþÁŽ½þÁŽ½þÁŽ½jþÁŽ½VþÁŽ½eþÁŽ½BþÁŽ½@þÁŽ½þÁŽ½þÁŽ½þÁŽ½þÁŽ½zþÁŽ½þÁŽ½þÁŽ½þÁŽ½þÁŽ½þÁŽ½' GROUP BY newsDate ORDER BY newsDate DESC limit 0,1 [nativecode=1267 ** Illegal mix of collations (ujis_japanese_ci,IMPLICIT) and (latin1_swedish_ci,COERCIBLE) for operation '=']