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 ('86a0276e526e0aa81da79535dc6c7060','0','3.23.101.60','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714511891','board.php?boardid=33181&sid=5ee9d131f19193d3d14ddcb2cef201a9','0','0','')
mysql error: Duplicate entry '86a0276e526e0aa81da79535dc6c7060' for key 'PRIMARY'
mysql error number: 1062
mysql version: 10.5.23-MariaDB-0+deb11u1
php version: 5.6.40
Date: 30.04.2024 @ 23:18
Script: /board.php?boardid=33181&sid=5ee9d131f19193d3d14ddcb2cef201a9
Referer: http://mainboard.ppg-clan.de/board.php?boardid=33181&sid=5ee9d131f19193d3d14ddcb2cef201a9