I have a problem

Hi,
Found out about this plugin yesterday on Facebook. I was very interested.
So i installed it on one of my testsites, but it isn’t working the way it should.
When i try to install one of the testsites it first asks to install the plugins. When this is done i try to install the theme, pages etc but it gets stuck on the part, busy whit installing. I waited for more than an hour, tried it even several times but its not working?
Could use some assistance.
Wkr jack holland

The page I need help with: [log in to see the link]