I purchased a 70” activpanel titanium for home use by my daughter who has special needs. I have installed it onto the wall myself and carried out all updates during the installation. The panel connects fine to the WiFi and we can access the internet, however when we try to download apps from the promethean store we get an error message. Also we have the google play logo but when we click this it says google play is unavailable. In conclusion we are unable to download any apps that we require for her education, any help would be much appreciated.