Hello I had some issues myself. The template said http://localhost or something like that for the postgress host. After removing the http:// and only had the ip it connected, you might also need to create the database in postgress. I used adminer for that the log says what database name it is looking for. Also the frontend docker template shows http://localhost:port in it, you might also have to remove the http:// from that along with the port since there already is a files for the port in the template. Hope this helps