Can't join my friend's realms server

Before this moment everything was just ok. But now i can't join my friend's server. It takes forever to see loading screen (screenshot down there in linked files). I already tried: reloading my iPad; checking for minecraft updates in appstore; reloading Wi-Fi router; just. waited for about 15 minutes. I was in discord so i know exactly that no one else have this issue (they have connected to server, also they could see my character while i was on loading page). Minecraft in-app store page is loading correctly, my skins too. Please help me!