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 ('a63baa6cd6d821094111bb6844a1213b',',574,732,758,798,800,815,862,927,1011,1045,1046,1065,1153,1204,1208,1212,1226,1253,1268,1299,1306,1307,1342,1377,1470,1517','1','lastpost','desc','1715087943','0','3.133.144.197')
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: 07.05.2024 @ 15:19
Script: /search.php?action=user&userid=43&sid=1bad7088eb1efbc00049aa0d76b9065e
Referer: