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 ('c81009be1d67447467b6a1a04abf0431','0','3.15.225.173','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714481061','board.php?boardid=33172&sid=49793dfc4dd3ff8185b7eb430e7b366e','0','0','')
mysql error: Duplicate entry 'c81009be1d67447467b6a1a04abf0431' for key 'PRIMARY'
mysql error number: 1062
mysql version: 10.5.23-MariaDB-0+deb11u1
php version: 5.6.40
Date: 30.04.2024 @ 14:44
Script: /board.php?boardid=33172&sid=49793dfc4dd3ff8185b7eb430e7b366e
Referer: http://mainboard.ppg-clan.de/board.php?boardid=33172&sid=49793dfc4dd3ff8185b7eb430e7b366e