Will not install apps

Im new to the pro and can not install any app on my Homey app.
When I find a app and want it, it is green for 1sec then its greyed out.

Whats wrong?

You installed a Homey Cloud instance… and most apps are for the Pro only.
The install button greyes out when you want to install Pro apps to Homey cloud

Pls read the manual again to install your Homey Pro

Thank you for replying.
I have followed the user guide…