Hello

I have created my website and host it to Hostinger.com

But due to some problems, i have change for an other one. 
I have change my logo on header, footer and mail parameters. 
But when i make test or people send us mail via the site, the logo is not visible because website keep the last host and try to load the logo from Hostinger. So, i see pic with "?" inside.

When i read the mail not in html, i see the source code and can see that the link of the logo is kept on the old hoster.

How can i do to force or change this parameters. 
I have my new host in the parameter to upload on the server. 

I don't know what to do.