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 ('86b5eaf387d6d36f3abab8c2f0ad39aa', -1, 1563573585, 1563573585, '12d16807', 55, 0, 0)

Line : 189
File : sessions.php