App won't open, it just closes when I tap it. What can I do?

[StoneTurtle]

Hi - I just update the app and SPOS will not open.  I tap on the app and the Square logo pops up and 15 seconds later I'm back at home screen.  I'm running iOS 9 on an iPad.

[Sean]

@StoneTurtle - Sorry to hear about the trouble! To get going, I went ahead and moved your question to its own thread. Have you already had a chance to delete the app and reinstall it? Most of the time that resolves issues like this.