"We had to cancel. A very beautiful gathering for a holy mitzvah, "the first of the fleece, the foreleg, the cheeks and the maw," had been planned for tomorrow. It is a rare mitzvah, and the plan was to fulfill it with great splendor, as befits the honor of the King, in the presence of a crowd of Jews who rejoice in the mitzvos of Hashem.

It would have been a Yom Tov celebration for many Yidden.
But because of the current situation, with the government showing great strictness, there was no choice, "and it was decided to postpone it to another occasion." It can be postponed to another occasion.