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 ('e820e8eee9ffd63006289910d585560c', -1, 1563305026, 1563305026, '12d16807', 17, 0, 0)

Line : 189
File : sessions.php