Can't sign in by google in my browser

Hello, I am trying to make a browser app. Everything is well but when I am trying to sign in with google in any website For Example :- I open kodular community in my app, and try to sign in with google. After google verification google shows this error -

“You can’t sign in from this screen because this app doesn’t comply with Google’s secure browsers policy. If this app has a website, you can open a web browser and try signing in from there.”

What is the solution for that . Please help me