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 ('0c2fc84a6327813148f9efb7c2df743f','0','3.149.251.154','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715067492','thread.php?goto=firstnew_thread&threadid=2099&sid=81b19b5f995e946d9ce3895b347a6c51','0','0','')
mysql error: Duplicate entry '0c2fc84a6327813148f9efb7c2df743f' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 07.05.2024 @ 09:38
Script: /thread.php?goto=firstnew_thread&threadid=2099&sid=81b19b5f995e946d9ce3895b347a6c51
Referer: http://wehrbauten.de/thread.php?goto=firstnew_thread&threadid=2099&sid=81b19b5f995e946d9ce3895b347a6c51