Media Server and Battery Drain (Samsung Galaxy S6 Edge)

Very recently, in fact ever since I installed Pokemon Go a couple of days ago, my battery has nose-dived and it drains to almost empty in about 5 hours. I thought it was Pokemon, so I uninstalled it, but that didnt help, so I checked under settings and its something called Media Server that is taking up 78% of my battery! How can I stop this, I cant find that App anywhere