Ghost email subscribe is giving “Failed to sign up, please try again” error

I hope you are well.

I’m using Ghost 4.33 on DigitalOcean Droplet. The site is running well.

I have been editing the Casper theme. Mostly cosmetic updates.

I signed u pfor Mailgun and got my email, private password. etc. I followed number of guides to set up the email. but I still struggle to make it work. Not having any error log makes things reallydifficult.

I updated my config.production.json

"mail": { "transport": "SMTP", "options": { "service": "Mailgun", "host": "smtp.mailgun.org", "port": 587, "secureConnection": true, "auth": { "user": "[email protected]", "pass": "mylooooooongpassword" } } }, 

I didnt make any change to Signup form. Im using the custom Casper form.

Any idea forthe solution? Thnak you , any help is greatly appreciated. stay safe.

I also updated the Settings with API.