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 ('986d09a0d4b14602dd16851d3440f4f3', -1, 1563598965, 1563598965, '12cef11a', 37, 0, 0)

Line : 189
File : sessions.php