phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '139daa5ec9c35f88535ae0a5100999bc' 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 ('139daa5ec9c35f88535ae0a5100999bc', -1, 1776295868, 1776295868, 'c0a81010', 5, 0, 0)

Line : 187
File : sessions.php