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 ('4c3feccb9016d02033ad09a52e93c35a','0','3.16.166.3','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715565182','board.php?boardid=119&sid=7f3c0b379540ec6b595279837aa44800','0','0','')
mysql error: Duplicate entry '4c3feccb9016d02033ad09a52e93c35a' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 13.05.2024 @ 03:53
Script: /board.php?boardid=119&sid=7f3c0b379540ec6b595279837aa44800
Referer: