I'm also having this exact issue, it logged me out this week and I just
attempted to log back in and got the same error. The app is up to date.
I am going to message them on FB, this is rather annoying as I have been
printing my labels from my phone ...
I would recommend checking out Not Your Dad's CPA. He's a former
reseller and he's a full time accountant that does a lot of tax
preparation for resellers so he knows the ins and outs. He also sells a
course but his YT videos are really good and can ...