entypo-fontello icons displayed as squares or china-signs

Hi experts,

the entypo font-characters didn’t shown in the correct way.
I also tried this solution in the .htaccess:

<IfModule mod_headers.c>
<FilesMatch “\.(ttf|ttc|otf|eot|woff|font.css|css)$”>
Header set Access-Control-Allow-Origin: http://yourwebsitedomaingoeshere.com
</FilesMatch>
</IfModule>

but it don’t works. After that I tried this:

@font-face {font-family: 'entypo-fontello'; font-weight: normal; font-style: normal;
src: url('http://www.landhaus-kienbacher.de/wordpress/wp-content/themes/enfold/config-templatebuilder/avia-template-builder/assets/fonts/entypo-fontello.eot?v=3');
src: url('http://www.landhaus-kienbacher.de/wordpress/wp-content/themes/enfold/config-templatebuilder/avia-template-builder/assets/fonts/entypo-fontello.eot?v=3#iefix') format('embedded-opentype'), 
url('http://www.landhaus-kienbacher.de/wordpress/wp-content/themes/enfold/config-templatebuilder/avia-template-builder/assets/fonts/entypo-fontello.woff?v=3') format('woff'), 
url('http://www.landhaus-kienbacher.de/wordpress/wp-content/themes/enfold/config-templatebuilder/avia-template-builder/assets/fonts/entypo-fontello.ttf?v=3') format('truetype'), 
url('http://www.landhaus-kienbacher.de/wordpress/wp-content/themes/enfold/config-templatebuilder/avia-template-builder/assets/fonts/entypo-fontello.svg?v=3#entypo-fontello') format('svg');
} #top .avia-font-entypo-fontello, body .avia-font-entypo-fontello, html body [data-av_iconfont='entypo-fontello']:before{ font-family: 'entypo-fontello'; }

in the Quick the CSS field does nothing, too.

Many thanks in advance.

Wilfried