phpBB : Erreur Critique

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '7264c9b5bf33b5ba9da6765a8f0d7480' for key 'phpbb_sessions.PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('7264c9b5bf33b5ba9da6765a8f0d7480', -1, 1770303939, 1770303939, 'd849d8dc', -9, 0, 0)

Line : 187
File : sessions.php