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 ('6ac25b78a166fed34d096d77df9212ee', -1, 1568943768, 1568943768, '12ce107b', 46, 0, 0)

Line : 189
File : sessions.php