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 ('1b35c5d7552bb82c8b8675ac41e69d29',',649,753,774,808,849,869,904,907,974,975,1052,1102,1181,1257,1259,1262,1289,1372,1413,1465','1','lastpost','desc','1714768567','0','3.145.105.108')
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: 03.05.2024 @ 22:36
Script: /search.php?action=user&userid=22&sid=1715b162df5055df0596e551da610c1d
Referer: