Header error

I am receiving the following error when I try to load my header building. I will supply the credentials below.

Hi there,

Thank you for writing in. The problem is the difference between your settings in Settings > General > Wordpress/Site Address

and the actual staging URL which you are using which you gave us in the Secure Note.

I don’t know if I guessed right but it seems you use the Siteground staging service, kindly contact them and ask them to make the settings of the Wordpress which I mentioned the same as the URL which you are using as a staging website.

Thank you.