DB-Anfrage error:1267

DB_Sql error: Invalid SQL OR connection closed before Query: SELECT tag_id FROM x_tags WHERE tag_name='Stadtteilschule Walddörfer - Standort Vörn Barkholt Klassen 5 - 6'
MySQL says: Errno 1267 - Illegal mix of collations (latin1_general_ci,IMPLICIT) and (utf8mb4_unicode_ci,COERCIBLE) for operation '='