phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '486fe94dbc1d9a840d4c4761b842608e' for key 'PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin, priv_session_id) VALUES ('486fe94dbc1d9a840d4c4761b842608e', -1, 1714304959, 1714304959, 'ac453bb5', -4, 0, 0, '841dcca7e629efbc961d6cab5417e34e')

Line : 187
File : sessions.php