My app is not opening up ?

[Joselin]

I’ve tried shutting my phone off uninstalling the app and logging out of my iCloud and logging back in ? It keeps kicking me off when I click on the app

[cadwal]

I am tryingto use the pos app in an off-line location.  I check the pos before I left home and is was fine thru wireless connection.  I shut phone off and tried to turn it back on a few minutes later and app would not load. I do not have phone on data plan, so do not have internet connection at the location I sell.  Anyone else have this problem?

[Milos_Lemonade]

Are you on ios 11 beta? I am and the app is not working.

[cadwal]

I don't know what operating system I have.  My son loaded it on his used Galaxy 5s for me to use.

[Deketranoel]

Mine stopped working once I upgraded to iOS 11 Beta. I’m losing lots of money and will try to downgrade back to 10