SQL-DATABASE ERROR

Database error in WoltLab Burning Board (2.3.6): Invalid SQL: INSERT INTO bb1_searchs (searchhash,postids,showposts,sortby,sortorder,searchtime,userid,ipaddress) VALUES ('96a986d786a23003b391bedee733c0ab',',1502,1509','1','lastpost','desc','1714681390','0','3.135.216.174')
mysql error: Field 'searchstring' doesn't have a default value
mysql error number: 1364
mysql version: 10.3.39-MariaDB-1:10.3.39+maria~ubu2004
php version: 5.2.17
Date: 02.05.2024 @ 22:23
Script: /search.php?action=user&userid=59&sid=2150624280cb3bfb35ef47a4b69389c3
Referer: