Getting envoyer to deploy code

I'm trying to use envoyer to deploy my code and the issue I'm having is that it is failing to connect to my server. I first had it connect as the root user, but when I deployed I got an error where it was saying that I shouldn't use root to run composer so I then created a new user and gave it 775 permissions to folder that I pointed my envoyer to, but now I can't connect to my server. I'm assuming that it's because I gave the new user a password, but I'm not sure what I should do in this case.