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 ('1fdca3092cd437f0719f03a5bd3fcc8f',',1502,1509','1','lastpost','desc','1714757671','0','18.223.172.252')
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: 03.05.2024 @ 19:34
Script: /search.php?action=user&userid=59&sid=cce4718187a2c378377a4764d10d3f56
Referer: