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 ('b5bed828ac07c8e08e62fe137a80b74f','0','3.145.186.173','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715386938','board.php?boardid=468&sid=052974a29316fbe3381fe9df064f83c0','0','0','')
mysql error: Duplicate entry 'b5bed828ac07c8e08e62fe137a80b74f' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 11.05.2024 @ 02:22
Script: /board.php?boardid=468&sid=052974a29316fbe3381fe9df064f83c0
Referer: http://wehrbauten.de/board.php?boardid=468&sid=052974a29316fbe3381fe9df064f83c0