SQL-DATABASE ERROR

Database error in WoltLab Burning Board (2.3.6): Invalid SQL: INSERT INTO bb1_sessions (sessionhash,userid,ipaddress,useragent,lastactivity,request_uri,styleid,langid,authentificationcode) VALUES ('0e8f166f412cb83421de0b69abec28e0','0','3.143.9.223','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1717314858','thread.php?threadid=4353&goto=lastpost&sid=16c1f0800ac856c6c8c228c4888c9567','0','0','')
mysql error: Duplicate entry '0e8f166f412cb83421de0b69abec28e0' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.7.42-log
php version: 5.6.40
Date: 02.06.2024 @ 09:54
Script: /thread.php?threadid=4353&goto=lastpost&sid=16c1f0800ac856c6c8c228c4888c9567
Referer: