phpBB : Erreur Critique

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'aba478f3efd084f21a8455ae0b3fee7e' 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 ('aba478f3efd084f21a8455ae0b3fee7e', -1, 1770092300, 1770092300, 'd849d8de', 3, 0, 0)

Line : 187
File : sessions.php