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 ('a11693f11fa12e9cf82d1ebb9aa33a90','0','3.14.85.213','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715554816','thread.php?goto=lastpost&threadid=610&sid=fa034389f7975d7b750832cfcf712c74','0','0','')
mysql error: Duplicate entry 'a11693f11fa12e9cf82d1ebb9aa33a90' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 13.05.2024 @ 01:00
Script: /thread.php?goto=lastpost&threadid=610&sid=fa034389f7975d7b750832cfcf712c74
Referer: http://wehrbauten.de/thread.php?goto=lastpost&threadid=610&sid=fa034389f7975d7b750832cfcf712c74