phpBB : Erreur Critique

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'b9217891259b59eea4bd210386e4c79d' 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 ('b9217891259b59eea4bd210386e4c79d', -1, 1766154261, 1766154261, 'd849d89f', -9, 0, 0)

Line : 187
File : sessions.php