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 ('cb4904cf91bcf22ad3516b3249d1d4f5','0','3.22.242.141','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714945273','thread.php?postid=16069','0','0','')
mysql error: Duplicate entry 'cb4904cf91bcf22ad3516b3249d1d4f5' for key 'PRIMARY'
mysql error number: 1062
mysql version: 8.0.11
php version: 5.6.10
Date: 05.05.2024 @ 23:41
Script: /thread.php?postid=16069
Referer: http://gttempel.de/thread.php?postid=16069