Illegal mix of collations (latin1_german1_ci,IMPLICIT) and (utf8mb4_general_ci,COERCIBLE) for operation '=' SQL=SELECT DISTINCT u.`id` FROM `#__comprofiler` AS c INNER JOIN `#__users` AS u ON u.`id` = c.`id` WHERE ( u.`username` = 'Schmuckzubeh��r' OR c.`alias` = 'Schmuckzubeh��r' ) LIMIT 0, 1