SQL-DATABASE ERROR

Database error in WoltLab Burning Board (2.3.6 pl2): Invalid SQL: INSERT INTO bb1_sessions (sessionhash,userid,ipaddress,useragent,lastactivity,request_uri,styleid,langid,authentificationcode) VALUES ('6418e2fd4a6e65388eac40b1878613fc','0','216.73.216.11','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1757131203','editpost.php?postid=6645','0','0','')
mysql error: Duplicate entry '6418e2fd4a6e65388eac40b1878613fc' for key 'PRIMARY'
mysql error number: 1062
mysql version: 8.0.11
php version: 5.6.10
Date: 06.09.2025 @ 06:00
Script: /editpost.php?postid=6645
Referer: