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 ('1bd49297605c9de8c62a722ab8786f48','0','3.17.6.75','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714855832','board.php?boardid=299&sid=11674ef8c4260f4eade3b5b71a07c4cb','0','0','')
mysql error: Duplicate entry '1bd49297605c9de8c62a722ab8786f48' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 04.05.2024 @ 22:50
Script: /board.php?boardid=299&sid=11674ef8c4260f4eade3b5b71a07c4cb
Referer: http://wehrbauten.de/board.php?boardid=299&sid=11674ef8c4260f4eade3b5b71a07c4cb