Can't upload worlds to my realm

Hello Mojang I just wanted to say I payed a lot of money for my realm and when I tried to upload my anarchy world to the realm it dose not work and it always says error or I always get stuck in a infinite loading screen of death it would be very amazing if you can fix this because after all I payed a lot of my hard earned money on this and it would be nice if it could work I will show you a few images. also other times it says because of my internet connection when its my internet tis fine. https://youtu.be/80F_0pIMyEg Here is the link to show you whats going on because this is painful all I want to do it upload a realm.