Why won't the Square app open?

[Margene]

[The title of this thread has been edited from the original: How do I get my app to open]

I have already downloaded the app awhile back. I have already received a card reader When I tried to open it up, it says attempt failed. What do I need to do?

[isabelle]

Hey @Margene!

Sorry to hear that. What device are you using?

Regardless, I would suggest deleting and reinstalling the app on your device. See Apple’s support site and Google’s support site for instructions on how to do so.

Let me know if that doesn't work.