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 ('d047ac66337984b9512459d9f71ce4f8','0','3.134.77.195','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715410310','board.php?boardid=75&sid=8b85bc06dce12467f7ac81835d872e27','0','0','')
mysql error: Duplicate entry 'd047ac66337984b9512459d9f71ce4f8' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 11.05.2024 @ 08:51
Script: /board.php?boardid=75&sid=8b85bc06dce12467f7ac81835d872e27
Referer: