Illegal mix of collations (utf8_general_ci,IMPLICIT) and (utf8mb4_general_ci,COERCIBLE) for operation '=' SQL=SELECT `new_url`,`header`,`published` FROM `#__redirect_links` WHERE `old_url` = 'http://www.malakoff.no/ARTISTAR/┼retsartistar.aspx' LIMIT 0, 1