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 ('5402911b3c5927bcd1bd4aa04321e423',',1502,1509','1','lastpost','desc','1714297083','0','3.144.96.159')
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: 28.04.2024 @ 11:38
Script: /search.php?action=user&userid=59&sid=fb050b9e43b9c4fadbe394ab8e1fd8ae
Referer: