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 ('2e08b0ebf9adf98f86e7f79e1ad7b8d8','0','3.128.173.32','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715483873','board.php?boardid=352&sid=cf9b8742fcd0c03b05ed061eb019e93f','0','0','')
mysql error: Duplicate entry '2e08b0ebf9adf98f86e7f79e1ad7b8d8' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 12.05.2024 @ 05:17
Script: /board.php?boardid=352&sid=cf9b8742fcd0c03b05ed061eb019e93f
Referer: http://wehrbauten.de/board.php?boardid=352&sid=cf9b8742fcd0c03b05ed061eb019e93f