Android apps fail

I just bought screeneo U3 and I have a message error when I try to use any apps.
I have the error message " it seems we are having some problems on our side. Please try again later"
I tried to clean cache and date, factory reset and nothing works.
Wifi connectivity is good.
Please help, I bought it to use these apps… I will send back to market and get back money if it doesn’t work!