Looking like another user is having problems and posted a review im the windows store, so I am not alone I guess.
Try installing from your download list/history in the store..
Tried that and this is what I get //uploads.tapatalk-cdn.com/20160923/d3249191e098269a7b4de3e1c3f5ab6b.png
I bought a L950 last week. I have the same issue with mydlink lite. Have written to dlink asking about it, using the provided e-mail in the store, but no answer.