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 ('4c9ed4aa4a5fa61296d626e2e50d652f',',534,536,632,641,660,664,794,839,851,854,893,901,909,914,962,966,1032,1054,1066,1067,1124,1125,1202,1249','1','lastpost','desc','1714868918','0','3.139.97.157')
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: 05.05.2024 @ 02:28
Script: /search.php?action=user&userid=37&sid=4ddf81d33878cd34cb196a6ebbf06915
Referer: