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 ('8218e7321da791413df919e2a60b2d56','0','216.73.216.34','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1749001835','usercp.php?action=addsubscription&threadid=1439','0','0','')
mysql error: Duplicate entry '8218e7321da791413df919e2a60b2d56' for key 'PRIMARY'
mysql error number: 1062
mysql version: 8.0.11
php version: 5.6.10
Date: 04.06.2025 @ 03:50
Script: /usercp.php?action=addsubscription&threadid=1439
Referer: