Button error

Hi, I have a Shelly 1 plus, when I select button momentary the app shows error, the hardware input works like a switch, is a bug or can I solve the problem in some way? Thanks!

Yes it works fine now, thank you very much! However, I have seen that when I turn the light on and off from the button the status of the light on the app does not update, to update the status I have to close the app and open it again. I have updated the shelly firmware but nothing has changed, do you also have this problem or do I do something wrong?