Customer Display issues: card not in there, but says it is

[beargrasscafe]

Hi there! We're having so many issues with our new register. This is the newest one that is really frustrating. It is saying there's a card in there but there's not. We have to unplug it to take cash. It's really messing us up 😞 See video. 

https://streamable.com/lpsll1

[alexandriak]

Which register system is this? the ipad and square app, or their all in one?