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 ('356afa10267286bc40e3572f21a69e77','0','3.145.131.238','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715273710','board.php?boardid=270&sid=1a7cc0bca904f6874a9d46d12d3576e9','0','0','')
mysql error: Duplicate entry '356afa10267286bc40e3572f21a69e77' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 09.05.2024 @ 18:55
Script: /board.php?boardid=270&sid=1a7cc0bca904f6874a9d46d12d3576e9
Referer: http://wehrbauten.de/board.php?boardid=270&sid=1a7cc0bca904f6874a9d46d12d3576e9