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 ('48f7b698e0e8922531267189dacb0ce4','0','216.73.216.151','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1749189449','addreply.php?postid=2085','0','0','')
mysql error: Duplicate entry '48f7b698e0e8922531267189dacb0ce4' for key 'PRIMARY'
mysql error number: 1062
mysql version: 8.0.11
php version: 5.6.10
Date: 06.06.2025 @ 07:57
Script: /addreply.php?postid=2085
Referer: