I've searched forums but didn't find answer for my problem.
So on the mobile app there is an option to connect to hub. It just shows the Hubitat admin pages.
From the beginning when this option showed up I was able to use it locally or over my VPN.
Now when I try to connect via VPN it redirects to buy Remote admin subscription. Why?!
But still I can use VPN and manually in web browser write my Hubitat IP and use it without any problems.