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 ('7a87836bcf38b224c03ad156c2516358',',105,106,107,109,110,112,113,114,117,118,126,138,139,386,387,388,389,391,393,394,395,396,397,400,401,402','0','lastpost','desc','1715046711','0','3.141.193.158')
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 @ 03:51
Script: /search.php?action=polls&sid=803339d1261510485d451f5a3a5013a2
Referer: