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 ('18d847d1086b1b439c4fd6414b3aefc2','0','18.118.187.189','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1745232789','thread.php?postid=32365','0','0','')
mysql error: Duplicate entry '18d847d1086b1b439c4fd6414b3aefc2' for key 'PRIMARY'
mysql error number: 1062
mysql version: 8.0.11
php version: 5.6.10
Date: 21.04.2025 @ 12:53
Script: /thread.php?postid=32365
Referer: http://gttempel.de/thread.php?postid=32365