On local development environment font-icon (si-atelier) display perfectly, but on production server some thing missing

On local development environment font-icon (si-atelier) display perfectly, but on production server icon not displayed on Chrome and mozilla but on on IE9.

• Wordpress Themes - Atelier
• Atelier Demo - http://ift.tt/1DoZCOV

I want those icon: On my local server it perfect.

But when i upload in production server, there is the problem:

Mozilla and Chrome not showing that icon, but IE9 show that icon perfectly.i'm using a shared hosting.

the console show this problem, but i'm not understand. Think their is a font-face problem.

Thanks advance all for helping me.

via Chebli Mohamed