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 ('dc966727ed81698c7ead75e6af50c76a','0','18.221.85.142','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715520812','thread.php?goto=lastpost&threadid=2503&sid=3d2f03b8972e504fc4b1887613feea5a','0','0','')
mysql error: Duplicate entry 'dc966727ed81698c7ead75e6af50c76a' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 12.05.2024 @ 15:33
Script: /thread.php?goto=lastpost&threadid=2503&sid=3d2f03b8972e504fc4b1887613feea5a
Referer: