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 ('90c3b10b9dc0004df77f5980c4f680b1','0','3.128.203.120','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1745045701','addreply.php?action=quote&postid=8658','0','0','')
mysql error: Duplicate entry '90c3b10b9dc0004df77f5980c4f680b1' for key 'PRIMARY'
mysql error number: 1062
mysql version: 8.0.11
php version: 5.6.10
Date: 19.04.2025 @ 08:55
Script: /addreply.php?action=quote&postid=8658
Referer: http://gttempel.de/addreply.php?action=quote&postid=8658