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 ('bb28c95db21eb5eee12e8866f05694cb',',667,756,829,917,959,963,1047,1076,1126,1162,1175,1223,1269,1327,1375,1388,1464,1490,1500','1','lastpost','desc','1714301617','0','3.139.90.131')
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: 28.04.2024 @ 12:53
Script: /search.php?action=user&userid=46&sid=8fe9f8218ac8c5df1bc80e7197e7a40a
Referer: