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 ('21e21db052774375e316e6f43f6bc1f3',',934,1051,1108,1155,1170,1245,1252,1263,1495,1374,1439,1524','1','lastpost','desc','1715171542','0','13.58.39.23')
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: 08.05.2024 @ 14:32
Script: /search.php?action=user&userid=49&sid=19c0ada04c36a1a50775d17c5a625ca1
Referer: