SQL-DATABASE ERROR

Database error in WoltLab Burning Board (2.3.6 pl2): Invalid SQL: INSERT INTO bb1_sessions (sessionhash,userid,ipaddress,useragent,lastactivity,request_uri,styleid,langid,authentificationcode) VALUES ('2b62f0168e383b3f56dd268b06ebfc3d','0','3.16.90.56','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1717043491','chartvote.php?=f1a1dad60669e11cb6b8b57403b11d5b','0','0','')
mysql error: Duplicate entry '2b62f0168e383b3f56dd268b06ebfc3d' for key 'PRIMARY'
mysql error number: 1062
mysql version: 10.1.48-MariaDB-0ubuntu0.18.04.1
php version: 7.4.33
Date: 30.05.2024 @ 06:31
Script: /chartvote.php?=f1a1dad60669e11cb6b8b57403b11d5b
Referer: http://www.karpfen-spezial.de/chartvote.php?=f1a1dad60669e11cb6b8b57403b11d5b