phpBB : Erreur Critique

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '277ad0f7f3bd5490b335d846c7f456a5' 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 ('277ad0f7f3bd5490b335d846c7f456a5', -1, 1768919562, 1768919562, 'd849d87f', -2, 0, 0)

Line : 187
File : sessions.php