When I try to upload my map to Minecraft Realms, I get the error message "upload failed -1"

When I try to upload my map to Minecraft Realms, I get the error message "upload failed -1"
even i try in Linux or window10 version, it show the same problem,"upload failed -1" . But the map can open in my local place, and it's originally download from my Realms early.
Big Trouble: (