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 ('456cbe05eaddb024004aa4456f5d5f9a','0','216.73.216.19','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1756636758','thread.php?postid=36994','0','0','')
mysql error: Duplicate entry '456cbe05eaddb024004aa4456f5d5f9a' for key 'PRIMARY'
mysql error number: 1062
mysql version: 8.0.11
php version: 5.6.10
Date: 31.08.2025 @ 12:39
Script: /thread.php?postid=36994
Referer: