cannot connect pgadmin4 to postgresql 10.4

I am running Debian Buster and I have issues with pgadmin4.

When I try to connect I have this message:

I can connect using TCP connection using psql and dbeaver and I can normally connect to Postgresql.
Could you give me some hints what to check so the pgadmin4 works. 

This is an error from the Docker versionof pgadmin4 v3.0.

And this a dialogue from pgadmin4  app installed through the repository

Kind regards, Mladen