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 ('b724f374de04de08d5d07aae636143fa','0','18.216.251.37','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715057896','thread.php?threadid=237517&sid=7ea1dce9af385c0f521c85c6a2f073fd','0','0','')
mysql error: Duplicate entry 'b724f374de04de08d5d07aae636143fa' for key 'PRIMARY'
mysql error number: 1062
mysql version: 10.1.48-MariaDB-0ubuntu0.18.04.1
php version: 7.4.33
Date: 07.05.2024 @ 06:58
Script: /thread.php?threadid=237517&sid=7ea1dce9af385c0f521c85c6a2f073fd
Referer: