On any device that I have tried to use, I cannot purchase a realms subscription.  I can click on the realms plus link to the marketplace and it does not open.  It tries to open the following URL:  [minecraft://openStore/?showStoreOffer=bd0fbb5f-cf5e-4e0b-8e4c-b01007adaa0b]

Upon clicking on this link, nothing happens, not store opens, no option to purchase.  I purchased Minecraft so that I could make a realm and play with friends, but there is now no way for me to do that unless it is a temporary error.