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 ('f355c033d1b3f8273795b4e36d144d71',',1502,1509','1','lastpost','desc','1714365141','0','3.139.97.157')
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: 29.04.2024 @ 06:32
Script: /search.php?action=user&userid=59&sid=253fffc6005959196b5ffeb675cfa4f7
Referer: