Hello Kitty DLC world is all black except to some items and the characters

I bought the Add-On just yesterday and when I created the world, I couldn't see anything. I thought maybe it was just my phone storage but when I tried to download other Add-Ons from the marketplace, I didn't have any problem unlike the issue I had with the Hello Kitty and Friends. The version I first bought it was 1.21.51, and then just updated the game earlier with the 1.21.60.28. I tried re-creating the world like a bunch of times already—even reinstalling the game but neither of it worked. I hope there's a way to fix this, I downloaded Minecraft just for this and paid a lot of money only for it to not work.

 

P.S: I downloaded the game just two days ago.