Hi Poshandboots ,
thanks for your report! Unfortunately there's not much to do about this. If the app tells you there are no videos left to watch that's because there are no videos left to watch meaning there's only a certain share of videos and once that's "used up" (meaning if a lot of people watch videos) it takes some time until there are more videos available AKA all you can do is wait and try again later.
I'm sorry I don't have a better reply to your question.