Hello all you crazy people!

I want to ask about the option to find your lost phone. In Flyme 4 you had the option in the Settings. Now in Flyme 5 I could only download the app, yet it doesn't work...
Besides that I also tried to find a page to log in an search the device by the browser.

Any ideas? Something change? Because in Flyme 4 the app worked, also the page with finding the phone.