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 ('da2351e68ea888e8f935f11f36147219',',36,39,41,48,64,74,105,109,114,118,163,378,436,521,527,535,537,546,560,594,595,648,693,699,701,1191,1231,1381,1385,1391,1408,1433,1449','1','lastpost','desc','1714765805','0','18.226.177.223')
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 @ 21:50
Script: /search.php?action=user&userid=1&sid=dd9f641a5a6d20980479a8eecfe3603d
Referer: