SQL-DATABASE ERROR

Database error in WoltLab Burning Board (2.3.6): Invalid SQL: INSERT INTO bb1_searchinfos_hsp_easy (userid, user, search, typ, direct, anz, searchdate) VALUES ('0', 'guest', 'Marina Preradović', 'Synchronsprecher', '1', '1', '1792778040')
mysql error: Incorrect string value: '\xC4\x87' for column `web4000207_hp`.`bb1_searchinfos_hsp_easy`.`search` at row 1
mysql error number: 1366
mysql version: 11.8.6-MariaDB-0+deb13u1 from Debian-log
php version: 8.5.12
Date: 23.10.2026 @ 19:54
Script: /hoerspiele.php?action=easysearch_result&syn=Marina+Preradovi%C4%87
Referer: