HELP - Running outside of Docker

Hi There,

I am trying to get this app running on a Nginx server already on a Raspi,

The docker images aren't compatible for some reason as I keep getting exec format errors,

Therefore, I install all the python modules needed to run the app proxied through Nginx

However, every time I go to run the main.py script I get this error

sqlalchemy.exc.OperationalError: (psycopg2.OperationalError) could not connect to server: Connection timed out
Is the server running on host "db" (160.83.8.143) and accepting
TCP/IP connections on port 5432?

I have no idea where this IP Address is coming from and it seems to be mapped to the domain www.db.com

Is there a way I can change this, I suspect it is something to do with the metadata.py script?