SQL-DATABASE ERROR

Database error in WoltLab Burning Board: Invalid SQL: DELETE FROM bb1_sessions WHERE lastactivity<1715245571
mysql error:
mysql error number: 0
Date: 09.05.2024 @ 11:36
Script: /wbblite/search.php?searchid=4119&sid=3013c477f8cd9d78cf76868c1c6987da
Referer: https://haumis-wbb-schule.friendsbistro.de/wbblite/search.php?action=user&userid=5&sid=11e94379ce04743511b47b76616a24de