I am having some problems with this box, cannot install Expressvpn app for some reason, cannot install Viaplay app etc.
And also this box thinks it is a phone not a tvbox why is that ?
I don't know if you installed it with google playstore or downloaded it yourself. Some apps have requirements for devices, such as supporting screens, supporting gyroscopes, etc. If the box does not have one, then such apps may be prohibited from being installed.
We can try the two apps you mentioned, if the names are correct.
The device is sometimes regarded as a phone, which may be a special case. After all, Android is prepared for the phone by default, and it is not ruled out that there are still such prompts in some places. If you can tell us what happened, we'll take care of the situation.