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 ('c913c78ebf55080b928db37b5761e0fb','0','216.73.216.5','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1753533526','thread.php?postid=6491','0','0','')
mysql error: Duplicate entry 'c913c78ebf55080b928db37b5761e0fb' for key 'PRIMARY'
mysql error number: 1062
mysql version: 8.0.11
php version: 5.6.10
Date: 26.07.2025 @ 14:38
Script: /thread.php?postid=6491
Referer: