When trying to upload a world to my realm I receive a error message saying that my world could not be packed for upload

 For the last several weeks every time I have tried to  replace the world on my realm I receive an error message. The error message reads; we couldn’t pack your World file for upload maybe your hard drive is full? Neither  The storage on my PlayStation nor on Minecraft realms is anywhere close to full. The first time I saw this message I deleted 4 or 5 old World‘s that I was no longer  using and then try it again only to receive the same message. I receive the same message when I try to create a new world for my realm.