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 ('3504a9a4622042d278472a61caf0a11f','0','18.190.152.38','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714307066','editpost.php?postid=84567&sid=651fbad6558e24b7a29b2b7ef6f0d3b8','0','0','')
mysql error: Duplicate entry '3504a9a4622042d278472a61caf0a11f' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.7.42-log
php version: 5.6.40
Date: 28.04.2024 @ 14:24
Script: /editpost.php?postid=84567&sid=651fbad6558e24b7a29b2b7ef6f0d3b8
Referer: