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 ('15a4c04d1f60a968f5fb2d370c4f054b','0','18.190.159.10','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714420805','editpost.php?postid=80328&sid=dd508c8b528fad617288d68338393667','0','0','')
mysql error: Duplicate entry '15a4c04d1f60a968f5fb2d370c4f054b' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.7.42-log
php version: 5.6.40
Date: 29.04.2024 @ 22:00
Script: /editpost.php?postid=80328&sid=dd508c8b528fad617288d68338393667
Referer: