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 ('852971299f1ea9c4789b038f7995a3c3','0','18.221.165.246','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715098030','thread.php?threadid=2040&goto=lastpost&sid=bda761b1d51f809421d8934d90e8bebf','0','0','')
mysql error: Duplicate entry '852971299f1ea9c4789b038f7995a3c3' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 07.05.2024 @ 18:07
Script: /thread.php?threadid=2040&goto=lastpost&sid=bda761b1d51f809421d8934d90e8bebf
Referer: