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 ('a49bc1234a5c4cea61cd6dc1cc8c4f98',',1502,1509','1','lastpost','desc','1715193141','0','3.145.151.141')
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: 08.05.2024 @ 20:32
Script: /search.php?action=user&userid=59&sid=e7b31bd40c818d5813ac550b7311c567
Referer: