LG risio 2 won't play anything

I was watching YouTube and then youtube crashed, I opened YouTube again and then tried to play one of the videos but it did not play, I went to my downloaded folder in the gallery and tried playing one of the videos there but it just loaded for a few seconds and then said that it can't play video, I also tried to play music from Google but it said that it could not play anything,
I'm not sure how this happened but it could be my wifi or the phone.

Do I need help?

-Nathaniel Labedz

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