I had the same issue and i tried reinstalling the app as well.
But it did not work for me.
Then i was lokking for a app that would do the requirement and one my friend showed me a free App called CyberFlix TV
So fa it works well. but sometimes it get buffering issues thats the problem.
Not...
It wend down for some time. however the app is available again to download.
i downloaded the Cyberflix app fromTechslott
Not sure whether that is the official app. but it works well for me