DB-Anfrage error:1267

DB_Sql error: Invalid SQL OR connection closed before Query: SELECT tag_id, tag_eigenschaften, tag_type FROM x_tags WHERE tag_name='BAföG (Schüler)'
MySQL says: Errno 1267 - Illegal mix of collations (latin1_general_ci,IMPLICIT) and (utf8mb4_unicode_ci,COERCIBLE) for operation '='