Can't add Mailgun API keys on local

I’m unable to add Mailgun API keys on localhost.
Is there any logs or anything I can view to see why that is happening? It’s so hard to debug what is going on with no logs.

You can use Ghost CLI to find you logs: https://ghost.org/docs/api/v3/ghost-cli/log/

If you post the logs someone might be able to help you debug!