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 ('a71c6364d37f5d7d996049c1d258ee91','0','18.218.241.211','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1745039624','addreply.php?postid=9945','0','0','')
mysql error: Duplicate entry 'a71c6364d37f5d7d996049c1d258ee91' for key 'PRIMARY'
mysql error number: 1062
mysql version: 8.0.11
php version: 5.6.10
Date: 19.04.2025 @ 07:13
Script: /addreply.php?postid=9945
Referer: http://gttempel.de/addreply.php?postid=9945