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 ('6d9e04e4d9c66190ebcc269a9ba36845','0','13.58.121.131','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715203154','newthread.php?boardid=27&sid=0fd0dc6a23e316b0de9ffec488fae6cf','0','0','')
mysql error: Duplicate entry '6d9e04e4d9c66190ebcc269a9ba36845' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 08.05.2024 @ 23:19
Script: /newthread.php?boardid=27&sid=0fd0dc6a23e316b0de9ffec488fae6cf
Referer: http://wehrbauten.de/newthread.php?boardid=27&sid=0fd0dc6a23e316b0de9ffec488fae6cf