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 ('f43dc0a44070493ff4f136e9a25f9f61','0','3.22.171.136','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715291037','thread.php?goto=lastpost&threadid=2323&sid=a376735670e5355102fb3355e54ac0f9','0','0','')
mysql error: Duplicate entry 'f43dc0a44070493ff4f136e9a25f9f61' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 09.05.2024 @ 23:43
Script: /thread.php?goto=lastpost&threadid=2323&sid=a376735670e5355102fb3355e54ac0f9
Referer: http://wehrbauten.de/thread.php?goto=lastpost&threadid=2323&sid=a376735670e5355102fb3355e54ac0f9