I think the company folded

I have no financial stake in them, and am a satisfied customer. Here is my thinking:
I saw the post they were switching packing suppliers.
Their customer service phone and chat are dead.
Boxes are coming with fewer and fewer items.

I think delivers for new items to be packed for Monday Aug10 were cancelled. The packing teams continue to fulfill orders as best as possible. So people were getting almost complete boxes on Monday and Tuesday they are almost empty.

The phone and chat likely go through the same web app and were shut off.

They shuttered everything overnight and are gone.

One other possibility is that they were totally unprepared for the supplier shift to have a hiccup are panicking. Hence the lack of updates from the company.