ERR_TOO_MANY_REDIRECTS after setting up SSL

I have seen a few questions like mine, nut none solving my problem. I set up SSL with my web app to protect it, but after I have done that, I keep getting the error “ERR_TOO_MANY_REDIRECTS”. I’m not sure if this is a problem with my NGINX file, or another one. Here is the code for my NGINX file:

# HTTP — redirect all traffic to HTTPS
server {
    listen 80;
    listen [::]:80 default_server ipv6only=on;
    return 301 https://$host$request_uri;
}

# HTTPS — proxy all requests to the Node app
server {
    # Enable HTTP/2
    listen 443 ssl http2;
    listen [::]:443 ssl http2;
    server_name *****.io;

    # Use the Let’s Encrypt certificates
    ssl_certificate /etc/letsencrypt/live/*****.io/fullchain.pem;
    ssl_certificate_key /etc/letsencrypt/live/*****.io/privkey.pem;

    # Include the SSL configuration from cipherli.st
    include snippets/ssl-params.conf;

    location / {
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header X-NginX-Proxy true;
        proxy_pass http://localhost:3000/;
        proxy_ssl_session_reuse off;
        proxy_set_header Host $http_host;
        proxy_cache_bypass $http_upgrade;
        proxy_redirect off;
    }
}

I’m sure my server is running on port 3000. Also, I’m not sure if it’s important but my folder with my Node app doesn’t have the domain extention in it…

Thanks!