phpBB : Erreur Critique

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '931f4630e4782fabec5503db04f0d635' 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 ('931f4630e4782fabec5503db04f0d635', -1, 1770234052, 1770234052, 'd849d8dc', 3, 0, 0)

Line : 187
File : sessions.php