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 ('df394e4bcf49caf1b9e2609ec9b5b4da','0','3.133.119.66','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714029600','thread.php?goto=lastpost&threadid=864&sid=35dc70f523febd2ce60653c22de2e36c','0','0','')
mysql error: Duplicate entry 'df394e4bcf49caf1b9e2609ec9b5b4da' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 25.04.2024 @ 09:20
Script: /thread.php?goto=lastpost&threadid=864&sid=35dc70f523febd2ce60653c22de2e36c
Referer: