I have add the alt an title tags to the logo. It is a common problem in all the themes using the avia framework. So i changed the line 395 in the function-set-avia-frontend.php file
$logo = "<img src=".$logo." alt='new alt information' title='new title information' />";
Actually I am using a child theme to customize the css. Is there a way to change this information in the framework and do not lose this information in a future update of the theme?
Thank you and best regards.