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 ('1a5349db23440167b78c83a7b7a11556',',43,51,52,87,90,115,116,117,121,122,124,135,142,145,150,301,197,200,208,224,227,230,261,272,286,287,297,359,360,397,406,411,420,539,451,457,494,503,504,517,555,572,601,627,650,711,744,814,867,881,889,892,897,906,918,938,941,942,945,971,972,1013,1055,1103,1149,1165,1187,1217,1230,1232,1234,1240,1345,1396,1438,1498','1','lastpost','desc','1714546201','0','3.138.118.250')
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: 01.05.2024 @ 08:50
Script: /search.php?action=user&userid=17&sid=ce2f9a0872a1bcc75fab4b4e1f82aec1
Referer: