Why can't I order large fries on uber eats?

Why can't I order large fries on uber eats? It's usually supposed to be an 80 cent upcharge to get a large Fry added to my order but when I try to add it it says this item is not available. So I have to add 2 small fries and pay 4.80?

Seems like this only just started happening for me about a month or two ago. When I called my local Wendy's they said they dont have time to talk to me because of a line and hung up.