You don't even know a wither, don't even consider yourself as a minecraft player
I have a lot of rare things, one is actually a ruined portal underwater, yes no kidding, underwater. Here is the proof, when I took the screenshot I was like I'd better show someone.(And yes I cheated in the game. LOL)
The first world I ever created is a trial world back then when I first touches this game called Minecraft and I wasn't affording it and I just had the trial version of bedrock and the first world was in a village, I guess all bedrock trial worlds are in village. And I remembered I robbed a villagers house and camped out in a church. I don't really know how to craft that much yet and I am so foolish, when i saw a skeleton carrying a helmet, I was like, hey lets kill that guy and get his helmet! But I miss calculated and end up dying. That's when i actually purchased it.
You have peaceful mode on. Turn that off and see if it works again, because it is set to peaceful by default in bedrock and I didn't see any hostile mobs in your image and especially when its night.