SQL-DATABASE ERROR

Database error in WoltLab Burning Board (2.3.6): Invalid SQL: INSERT INTO bb1_sessions (sessionhash,userid,ipaddress,useragent,lastactivity,request_uri,styleid,langid,authentificationcode) VALUES ('c9a75ac4d7741b1dea2cc46a2b7d53da','0','216.73.216.118','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1759962560','thread.php?postid=147630','0','0','')
mysql error: Duplicate entry 'c9a75ac4d7741b1dea2cc46a2b7d53da' for key 'PRIMARY'
mysql error number: 1062
mysql version: 10.6.15-MariaDB-log
php version: 7.4.33
Date: 09.10.2025 @ 00:29
Script: /thread.php?postid=147630
Referer: