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 ('d6345dd52567bff15885211b79b0c822','0','18.117.74.44','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715594974','board.php?boardid=255&sid=a0978f9db531d2e1c659c3782379ca40','0','0','')
mysql error: Duplicate entry 'd6345dd52567bff15885211b79b0c822' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 13.05.2024 @ 12:09
Script: /board.php?boardid=255&sid=a0978f9db531d2e1c659c3782379ca40
Referer: