Help with secure connection with my website

Hello! Thanks in advance for the help. I’m having a problem with the certificates to make the site secure.

I have my domain purchased at:

My domain:
https://ofiucosonido.com.ar/

My netlify website:
https://ofiucosonido.netlify.app/

I leave 3 screenshots of my configuration

What could I be doing wrong?

Thank you !
Juan

The site shows as secure to me @Moreko

Why have you posted this screenshot?