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 ('9be8ebb1e3610bdb6ace2c8010fd9afd','0','18.217.67.16','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714486783','board.php?boardid=229&sid=ffc374b61887c86b2d40fb8410c0a032','0','0','')
mysql error: Duplicate entry '9be8ebb1e3610bdb6ace2c8010fd9afd' for key 'PRIMARY'
mysql error number: 1062
mysql version: 10.5.23-MariaDB-0+deb11u1
php version: 5.6.40
Date: 30.04.2024 @ 16:19
Script: /board.php?boardid=229&sid=ffc374b61887c86b2d40fb8410c0a032
Referer: http://mainboard.ppg-clan.de/board.php?boardid=229&sid=ffc374b61887c86b2d40fb8410c0a032