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 ('de4ae4a044813c236000be0d3c663a30','0','3.138.105.41','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714089606','board.php?boardid=56&page=1&daysprune=1000&sortfield=replycount&sortorder=ASC&sid=b1f7c137d9c92a3107df73a03ed7003f','0','0','')
mysql error: Duplicate entry 'de4ae4a044813c236000be0d3c663a30' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 26.04.2024 @ 02:00
Script: /board.php?boardid=56&page=1&daysprune=1000&sortfield=replycount&sortorder=ASC&sid=b1f7c137d9c92a3107df73a03ed7003f
Referer: http://wehrbauten.de/board.php?boardid=56&page=1&daysprune=1000&sortfield=replycount&sortorder=ASC&sid=b1f7c137d9c92a3107df73a03ed7003f