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 ('39aab1ed2225ec6b5bc1fd835f96380a','0','18.220.135.28','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1744781462','addreply.php?action=quote&postid=27424','0','0','')
mysql error: Duplicate entry '39aab1ed2225ec6b5bc1fd835f96380a' for key 'PRIMARY'
mysql error number: 1062
mysql version: 8.0.11
php version: 5.6.10
Date: 16.04.2025 @ 07:31
Script: /addreply.php?action=quote&postid=27424
Referer: http://gttempel.de/addreply.php?action=quote&postid=27424