I've tried that clean but the result is same. Please check the screenshot here. (https://drive.google.com/file/d/1-L0MjH7sa6_j3-PRyG92Dl0h0IjXSmm8/view?usp=shar...

I've followed your instructions, download QBO mobile app, but when I click +New then click accept button, it let me open a page in browser on my mobile and show...