phpBB : Erreur Critique

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'd39b76b1b60361dc21753d08d2ffb7ff' 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 ('d39b76b1b60361dc21753d08d2ffb7ff', -1, 1769472551, 1769472551, 'd849d869', -9, 0, 0)

Line : 187
File : sessions.php