Why is my stream 7 tablet frozen?

[WPCentral Question]

I was on an app called 9gag and I was watching a gif, then I tried to press the home button, but the screen instantly froze. I left it laying there for a day, and it was still frozen. Everytime I try to click something, it never works. Why is this happening?

 

[realwarder]

Something crashed. Hold the power button down for a minute to reset the device.