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 ('43c3733c3c6a3a9b9d68a033ec0f732a', -1, 1563611330, 1563611330, '365145dc', 8, 0, 0)

Line : 189
File : sessions.php