Please Help Theres a New Evil Entity!!!!!!!!!!

Please help I was playing minecraft on a survival world on easy
There was a wired shrine it had a crap ton of heads zombie heads and skulls all facing one direction my house! There was also blood and ton of "null" signs and on the shrine was totems of undying and more "null" signs and in a chest was a book and quill even though there not in pe and it said the heads face DEATH!!! And he is coming to kill you!!!!! I know it sounds like Null I thought so but after I saw a Orange entity with ribs showing and it had a half Herobrine half Null half entity303 face and it keep spawning withers and evokes vindicators and endermen!!!! I call it "The King Entity" Please Help Me and Minecraft!!!!????????????

IAmEpic 4404 about Minecraft: Pocket Edition, v1.1.4