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 ('875514bb70ecd91509b4b6a0ff3f1ed4','0','216.73.216.186','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1748868735','addreply.php?action=quote&postid=523','0','0','')
mysql error: Duplicate entry '875514bb70ecd91509b4b6a0ff3f1ed4' for key 'PRIMARY'
mysql error number: 1062
mysql version: 8.0.11
php version: 5.6.10
Date: 02.06.2025 @ 14:52
Script: /addreply.php?action=quote&postid=523
Referer: