They are in the midst of switching to a new AC server. I know they have had recurring hiccups with it for some time.
Some days I can access it PACloud; some days I can send files through it via ZTE. But it has been far from reliable, at least from me.
For folks like me – who use ZTE a lot, this is a notable inconvenience.
I take it you rely on it as well. I think they believe not very people use it. I hope they are mistaken.
However, I have been assured they are working diligently on it, and that the final version is just around the corner and will be worth the wait.