phpBB : Erreur Critique

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'c8199ec6cbb7d5860f336f70ace8c4b3' 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 ('c8199ec6cbb7d5860f336f70ace8c4b3', -1, 1766612397, 1766612397, 'd849d89f', 5, 0, 0)

Line : 187
File : sessions.php