I can't start a connection

[DarkPizza]

public static void main(String[] args) {
System.out.println("test");
PteroUserAPI api = new PteroUserAPI("https://ptero.correct.url", "ptero.correct.api.token");
System.out.println(api.getServersController().getServers());
}

As soon as I run this code, it just shuts down and nothing appears on the console
I apologize for the terrible formatting here of the issue on github, I have no experience