SQL-DATABASE ERROR

Database error in WoltLab Burning Board: Invalid SQL: DELETE FROM bb1_sessions WHERE lastactivity<1715747873
mysql error:
mysql error number: 0
Date: 15.05.2024 @ 07:07
Script: /wbblite/portal.php?sid=c7c6c22cd67cd62d68e2ad94b4e728d1
Referer: