I know just my opinion, but I don't understand if you are all not a the parks right now, why are you trying to get fast passes? Leave it to the people at the park! Just saying if it's this frustrating for people at home, imagine being in the park right now having to compete for fast passes with people at home grabbing them for practice.
Especially if app is having problems right now, all this extra use is probably adding to the burden.
Not saying anyone is doing something awful, just my thoughts on the subject.