I can't connect to other worlds made by my friends

since when i bought it or minecraft in the store it was full of problems, i share my account with my sister and my dad so we can play together, like right, more often an error message appears

Couldn't connect to the world

and today that minecraft has updated to version 1.16.20.53 it does not enter either the official servers or in any world, it just works or not a player

sorry for the bad english, i'm brazilian