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 ('9ca1064d60e84e7910ae1aa665474d86','0','18.222.179.186','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714707895','board.php?boardid=5&sid=7473b295ec8c7ed220f4aa6ec3737c81','0','0','')
mysql error: Duplicate entry '9ca1064d60e84e7910ae1aa665474d86' for key 'PRIMARY'
mysql error number: 1062
mysql version: 10.5.23-MariaDB-0+deb11u1
php version: 5.6.40
Date: 03.05.2024 @ 05:44
Script: /board.php?boardid=5&sid=7473b295ec8c7ed220f4aa6ec3737c81
Referer: http://mainboard.ppg-clan.de/board.php?boardid=5&sid=7473b295ec8c7ed220f4aa6ec3737c81