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 ('e50761ebf617cdc81c1a51d041947533',',1502,1509','1','lastpost','desc','1714814381','0','3.12.162.179')
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: 04.05.2024 @ 11:19
Script: /search.php?action=user&userid=59&sid=d23da9543159d0bc45ff5c72c15b1567
Referer: