phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'e139c8f29662a99a89d5944d1b50f406' 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) VALUES ('e139c8f29662a99a89d5944d1b50f406', -1, 1768004525, 1768004525, 'd849d805', 1, 0, 0)

Line : 187
File : sessions.php