My iphone 4s is connected to data and Wi-Fi but it won't llow me to refresh anything on apps?

It won't let me refresh snapchat, facebook, instagram, twitter. Etc. It also will not allow me to download any apps. I deleted facebook and was going to re-download it but it wouldn't let me. I've tried hard resetting it, shutting it off and resetting the router and my phone's Wi-Fi. I've turned airplane mode on and off as well. Nothing will work. Any help?

FB and ig are down right now because of a bug so i don't know.

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