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 ('fd97b44369c2f2e353144bbfe324e123', -1, 1563599504, 1563599504, '12cef11a', 21, 0, 0)

Line : 189
File : sessions.php