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 ('61f2ddd66757e9bad3d16bbedef4a29a',',1502,1509','1','lastpost','desc','1714868036','0','18.223.196.59')
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: 05.05.2024 @ 02:13
Script: /search.php?action=user&userid=59&sid=542a0a58abe52b6d96a42a990987a118
Referer: