SQL-DATABASE ERROR

Database error in WoltLab Burning Board (): Invalid SQL: INSERT INTO bb1_sessions (sessionhash,userid,ipaddress,useragent,lastactivity,request_uri,styleid,langid,authentificationcode) VALUES ('ee43aa26639c64c2d635b6ffbdc7bfa4','0','18.220.16.184','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714558552','board.php?boardid=33175&sid=83cdb0244d9d8ca71fb2d99ba8a21e91','0','0','')
mysql error: Duplicate entry 'ee43aa26639c64c2d635b6ffbdc7bfa4' for key 'PRIMARY'
mysql error number: 1062
mysql version: 10.5.23-MariaDB-0+deb11u1
php version: 5.6.40
Date: 01.05.2024 @ 12:15
Script: /board.php?boardid=33175&sid=83cdb0244d9d8ca71fb2d99ba8a21e91
Referer: http://mainboard.ppg-clan.de/board.php?boardid=33175&sid=83cdb0244d9d8ca71fb2d99ba8a21e91