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 ('9e1b7d32ee691cdcf54b9249979374b3','0','18.222.3.255','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715648789','board.php?boardid=39&sid=a71f380552154c51f1386c27b93a2ef5','0','0','')
mysql error: Duplicate entry '9e1b7d32ee691cdcf54b9249979374b3' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 14.05.2024 @ 03:06
Script: /board.php?boardid=39&sid=a71f380552154c51f1386c27b93a2ef5
Referer: http://wehrbauten.de/board.php?boardid=39&sid=a71f380552154c51f1386c27b93a2ef5