Hi, I am Henry. I am having problem with s7 edge after upgrading to Nougat

Hi all. After upgrading my s7 edge to Nougat, my main problem is video playback error with Youtube, media playing error, and it shows error with playing video when I play any video from gallery. The problem is resolved temporarily when I restart my phone but it keeps coming back. I've tried clearing cache partition, and reset my phone, but nothing seems to work. Please help me!

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