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 ('47b850f5e615685bb7112e0caded993b', -1, 1563675688, 1563675688, '035149e9', 20, 0, 0)

Line : 189
File : sessions.php