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 ('d16a1922154cea46d536fc0bff17c146',',1502,1509','1','lastpost','desc','1714769411','0','3.144.9.141')
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 @ 22:50
Script: /search.php?action=user&userid=59&sid=a64901b0b70b8f52c56ed2af13734e10
Referer: