I have been looking for about 30 min. on the search bar and I saw nothing like this

My world said "ERROR world has been corrupted."

I pressed "ok" and it brang me back to the menu and then I opened up my World (again) and was inside my base (The part that was not destroyed) for about 10 min then was walking and saw  there is a huge hole in it. 

Also All around my world were some holes and in random places like it made one of my houses 1 block high but here are the pictures.

 There are holes all over the map but only in my 3/4 level map.

Also I have been filling in the huge gaping hole and yes:

No Cheats

No Creative

You can fall out of the world (I died like 4 times)

Also the holes are only in a 3/4 level map