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 ('59c6f2780024c71f1cb3f1c900d642bb','0','3.128.198.36','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715827141','board.php?boardid=542&sid=4ca44f10cf49ad510eb58cbf2b0d5344','0','0','')
mysql error: Duplicate entry '59c6f2780024c71f1cb3f1c900d642bb' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 16.05.2024 @ 04:39
Script: /board.php?boardid=542&sid=4ca44f10cf49ad510eb58cbf2b0d5344
Referer: