Unable to download app

I have tried reloading this multiple times through the google play store and from my desktop. all I get is “waiting for download”. Any ideas to fix this? Android 7.1.2 phone.

Seems like something happens with Google Play app on the device.
(have seen such store behavior with several devices and all apps)
Can close Google Play app and try again or even restart the device.

By the way can see also the relevant documentation in wiki.