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 ('4ea9a8ad7484b195ccb7bd5e15ec4063','0','13.59.122.162','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714887444','board.php?boardid=127&sid=54dedbec841b178353d090f683e9a0ad','0','0','')
mysql error: Duplicate entry '4ea9a8ad7484b195ccb7bd5e15ec4063' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 05.05.2024 @ 07:37
Script: /board.php?boardid=127&sid=54dedbec841b178353d090f683e9a0ad
Referer: http://wehrbauten.de/board.php?boardid=127&sid=54dedbec841b178353d090f683e9a0ad