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 ('69af3b0215a04d1596dd23342718024c','0','3.140.186.201','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714813152','board.php?boardid=535&sid=b00dc40c58ad63b89a4656eb4671aa4b','0','0','')
mysql error: Duplicate entry '69af3b0215a04d1596dd23342718024c' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 04.05.2024 @ 10:59
Script: /board.php?boardid=535&sid=b00dc40c58ad63b89a4656eb4671aa4b
Referer: http://wehrbauten.de/board.php?boardid=535&sid=b00dc40c58ad63b89a4656eb4671aa4b