Unable to login in web browser

Hi. Im not able to signup with google in web browser learn.grasshopper.app. I have already signed in with google in my browser and that is chrome on the latest version. When I click that sign in with google button


That popup window appears and I can see my Google account. When I clicked on my google account, it starts loading and the window closes. But nothing happens. It still looks the same from the morning. Please help me fix this login issue. Thanks.
(Also once I tried the mobile app and when I signed in with google on that app, it said network error. But I had a very good network with youtube videos streaming in had quality)