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 ('34dc64aa2de36582784904c74d8bd6fc','0','18.117.81.240','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714951371','board.php?boardid=262&page=1&daysprune=1000&sortfield=vote&sortorder=ASC&sid=0ee023403ccd440a07a18e44b72c8fe0','0','0','')
mysql error: Duplicate entry '34dc64aa2de36582784904c74d8bd6fc' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 06.05.2024 @ 01:22
Script: /board.php?boardid=262&page=1&daysprune=1000&sortfield=vote&sortorder=ASC&sid=0ee023403ccd440a07a18e44b72c8fe0
Referer: