Setting up a reverse proxy on DigitalOcean App Platform to route main domain and subdomains

I am trying to setup er reverse proxy for my app platform. I have created App A, that works as a NGINX reverse proxy, that either shows content from App A if it’s from rezite.com or app B if it’s a subdomain. However. I can’t get it to work? How can I build such a structure with App platform

# App A: handles rezite.com and rezite.dk server { listen 80; server_name rezite.com rezite.dk; location / { proxy_pass http://test-analytics-app-g5dqp.ondigitalocean.app; # Replace with App A's container name + port proxy_set_header Host $host; proxy_set_header X-Real-IP $remote_addr; proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; proxy_set_header X-Forwarded-Proto $scheme; } } # App B: handles all subdomains of rezite.com and rezite.dk server { listen 80; server_name *.rezite.com *.rezite.dk; location / { proxy_pass http://rezite-spaces.ams3.cdn.digitaloceanspaces.com; # Replace with App B's container name + port proxy_set_header Host $host; proxy_set_header X-Real-IP $remote_addr; proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; proxy_set_header X-Forwarded-Proto $scheme; } }

Am I doing anything wrong?