CONNECTION PROBLEM ON PS4

Hello, i create this report because i have a connection problem with a friend, in short we would to play together on minecraft Bedrock Edition with our PlayStation 4, but we can't play together on PlayStation 4 because we get an error that says: "unable to connect to world".

We have already logged in with our Microsoft accounts, but still didn't work (we live in Italy for the information).

Thank you in advance for the answer.