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 ('e54c9a632eed5b2e9f473faf639b7c5a','0','3.135.209.249','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714565743','board.php?boardid=340&page=1&daysprune=1000&sortfield=replycount&sortorder=ASC&sid=2b16fc940816618cb61c1ddbfa5e9e9e','0','0','')
mysql error: Duplicate entry 'e54c9a632eed5b2e9f473faf639b7c5a' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 01.05.2024 @ 14:15
Script: /board.php?boardid=340&page=1&daysprune=1000&sortfield=replycount&sortorder=ASC&sid=2b16fc940816618cb61c1ddbfa5e9e9e
Referer: http://wehrbauten.de/board.php?boardid=340&page=1&daysprune=1000&sortfield=replycount&sortorder=ASC&sid=2b16fc940816618cb61c1ddbfa5e9e9e