My iphone says can't connect to app store?

It was working fine earlier and now when i try to update or download an app it won't connect to the app store. I've tried just about everything. Anyone know how to solve this?
thanks!
God bless xD

Added (1). My Wi-Fi says connected and i tried turning it off and back on and nothing changed. :/

How good of quality is iphone/ipad video?

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