For the first day we had the tablet, it worked perfect. It was a birthday gift bought for a small child but shes supervised when on it and only watched a few YouTube videos before it was put up for the night. We had already downloaded a couple other apps as well so everything worked great on this tablet. The next morning, we tried to turn YouTube on and a box popped up saying "YouTube will not play until Google Play Store is updated". It gave the option to update so I clicked it and it seemed to be updating until the end of the installation phase where another box pops up that says, more or less, "The app couldn't be updated "Error -504". It then gave the option to troubleshoot and I done that as well on the tablet itself and followed all the steps, but it still doesnt work. I've also done a factory reset and it still doesnt work. Any ideas?