Icons can't display normally

Hi team,

I have a staging site at – http://shangrila-beer.eggplanthq.cn/, where you can see all the icons (header social media and in contact page) are shown normally.

However after I moved the site to the live sever, which you can view at http://shangrilabeer.cn/, all the icons display with the value of “data-av_icon”, I don’t know why. Could you please help me out here asap? It’s a bit urgent here.

Thank you so much!