phpBB : Erreur Critique

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'ca8794207e36f6918b2c3b4d4dcb7e7b' 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 ('ca8794207e36f6918b2c3b4d4dcb7e7b', -1, 1756990667, 1756990667, 'd849d895', -2, 0, 0)

Line : 187
File : sessions.php