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 ('cd515a3e31d24beebab2493b53236612',',628,656,673,754,852,866,868,928,931,949,954,965,967,988,1062,1073,1119,1127,1142,1158,1209,1214,1244,1349,1416,1453','1','lastpost','desc','1715113528','0','3.141.27.244')
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 @ 22:25
Script: /search.php?action=user&userid=23&sid=ed2551607d99e941d290e02f417de039
Referer: