We apologize for the inconvenience, but this is currently a known issue.
The team is currently working on a fix that we hope to have out to everyone as soon as possible.
Thank you for your patience while we work on the solution!
To keep your information secure, please complete our request form at help.minecraft.net/hc/en-us/… so we can quickly and safely assist with your question! ^RL
@MojangSupport
I can't upload or create anything on the realm that i subscribe.
Anytime i want to make world, it will end with error.
I am feed up after trying for 4 days.
Have been looking through countless forum/discussion, yet nothing help.
I have no where else to ask