Why I'm not able to see downloaded widgets(huk zooper etc) in the widgets area?

So i am using honor play. Iam a widgets kind of guy, so i downloaded huk zooper widgets but i'm not able to see any widgets in the widget area of nova launcher. So what can i do? I have also tried rebooting phone thrice.

Welcome to Android Central! Do you actually have Zooper Widget installed on the phone as well? huk zooper isn't standalone -- it requires Zooper Widget to be installed.