phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '-1' for key 2

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('725df1a9149a83de9281f062c74d284f', -1, 1563305263, 1563305263, '12d16807', 2, 0, 0)

Line : 189
File : sessions.php