Feel free to prefer the reasons given here:
“Inasmuch as it is manifest from experience that if the Holy Bible, translated into the vulgar tongue, be indiscriminately allowed to every one, the rashness of men will cause more evil than good to arise from it, it is, on this point, referred to the judgment of the bishops or inquisitors, who may, by the advice of the priest or confessor, permit the reading of the Bible translated into the vulgar tongue by Catholic authors, to those persons whose faith and piety they apprehend will be augmented and not injured by it; and this permission must be had in writing. But if any shall have the presumption to read or possess it without such permission, he shall not receive absolution until he have first delivered up such Bible to the ordinary.” - 1584, the Pope
There’s no ban on the production of vernacular translations there. The statement in fact presupposes the existence and production of vernacular translations.