Only solemn definitions of dogmatic councils are infallible, not the entire content of the teaching of the council. The Second Vatican Council (pastoral) was the least important council in history,…
The Church is infallible in what she teaches in faith and morals. The Supreme organ in the Church for teaching is a an Ecumenical Council approved by a Pope. Therefore all Ecumenical Councils - so far 21 - including VII, are without error = infallible, in what they teach in faith and morals.