Hey ekowimbeah, can you please check if the data tab loads fine for your postgres database, as it uses the same credentials as with your reference variables. If it loads fine, then it is most likely an issue with your application, however let's confirm the root cause before we make any further assumptions.

Hi ekowimbeah, cross check your db url in the variables section and see if the password is the correct one

This one is a little hard trying to help without you sharing sensitive info, but lets try it anyway:

• Try connecting to your db with a different method, like pgadmin, or another service... this way you can rule out problems, if it work with pgadmin it's probably a problem with the config in you service (the one connecting postgresql)

• Try to connect with private network, maybe it's a problem with public url, or try to create a new DB from scratch and connect to that one, maybe its a problem with that specific service
  
  Just try this stuff and give feedback here so we can help