Anything this program tries to download does not work. It can't even download an avatar picture. I guarantee its not my connection. Avatar picture - floating bars. Marketplace - Can't load marketplace. World - forever loading. Started a subscription about an hour ago and about to immediately cancel it. Ridiculous.
Related issues
duplicates
Comments

This issue has already been reported. Duplicate MCPE-103893.
You can add additional information or just vote for the solution to this problem in the specified report.
Same here, The marketplace won’t load for me even though my connection is perfect and fast. I made an account to report the issue but I guess someone reported it already, hopefully Mojang can have it fixed.