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 ('cd59d2bc4fbfb4be41c9adaef6567f7e','0','3.143.228.40','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714916351','board.php?boardid=405&sid=b96149fb66448cc7b184f67de95c91c4','0','0','')
mysql error: Duplicate entry 'cd59d2bc4fbfb4be41c9adaef6567f7e' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 05.05.2024 @ 15:39
Script: /board.php?boardid=405&sid=b96149fb66448cc7b184f67de95c91c4
Referer: