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 ('1dda6d27c8443f33273afe3c4de58be9','0','3.134.77.195','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714874401','board.php?boardid=458&sid=a06ac6fd40a66c5fa93be68f632edaba','0','0','')
mysql error: Duplicate entry '1dda6d27c8443f33273afe3c4de58be9' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 05.05.2024 @ 04:00
Script: /board.php?boardid=458&sid=a06ac6fd40a66c5fa93be68f632edaba
Referer: http://wehrbauten.de/board.php?boardid=458&sid=a06ac6fd40a66c5fa93be68f632edaba