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 ('fa9f09cf83dc8b68b0772d52796b7a8d','0','3.17.110.58','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715657411','board.php?boardid=530&sid=094b60516c477bd3b1294f9b1df0fbfa','0','0','')
mysql error: Duplicate entry 'fa9f09cf83dc8b68b0772d52796b7a8d' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 14.05.2024 @ 05:30
Script: /board.php?boardid=530&sid=094b60516c477bd3b1294f9b1df0fbfa
Referer: http://wehrbauten.de/board.php?boardid=530&sid=094b60516c477bd3b1294f9b1df0fbfa