Uento Problem?

Just wanted to see if anyone else has problems with this app. I downloaded it a few days ago. Sometimes it works fine (though the 8 point apps seem to fail every time I try them) but other times, it screws up my google play store. It loads the main store page when I click on an app to download. If I go search for the app, or try and do anything else in the store, I get a "Server Error" with a "Retry" button. Hitting that does nothing. I fixed it last time, but it happened again an hour or so ago and I have not been able to get it backup yet. Does anyone else have this problem, or is it just a fluke? Thanks!