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 ('8408d6a0eab9ca9d7095829e6bf1de05','0','18.219.165.19','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1744860767','thread.php?postid=37241','0','0','')
mysql error: Duplicate entry '8408d6a0eab9ca9d7095829e6bf1de05' for key 'PRIMARY'
mysql error number: 1062
mysql version: 8.0.11
php version: 5.6.10
Date: 17.04.2025 @ 05:32
Script: /thread.php?postid=37241
Referer: http://www.gttempel.de/thread.php?goto=lastpost&threadid=2251