jQuery(document).ready(function(){
                          var a=[];
                        a[2]=["ficon2"],
                        a[3]=["ficon3"],
                        a[8]=["ficon8"],
                        a[28]=["ficon28"],
                        a[20]=["ficon20"],
                        a[33]=["ficon33"],
                        a[41]=["ficon41"],
                        a[48]=["ficon48"],
                        a[63]=["ficon63"],
                        a[37]=["ficon37"],
                        a[60]=["ficon60"],
                        a[19]=["ficon19"],
                        a[25]=["ficon25"],
                        a[26]=["ficon26"],
                        a[21]=["ficon21"],
                        a[55]=["ficon55"],
                        jQuery(".forum a").each(function(){
                        var b=jQuery(this).attr("href").match(/^\/f(\d+)-/)[1];
                        void 0!==a[b]&&jQuery(this).closest("a").find(".material-icons").attr("class",a[b])
                        })});
                        
                             $(function(){
      $('.menu-left').click(function(){
        $('header').toggleClass('active'),
          $('#menu-left').toggleClass('active'),
        $('footer').toggleClass('active')
      });
      $('.menu-right').click(function(){$('#menu-right').toggleClass('active')});
    })();

 $(function(){
 
  $('.menu-search').click(function(){
    $('#mobile-search, .menu-search').toggleClass('active')
  }());
 
}());

jQuery(document).ready(function(){
                          var a=[];
                        a[2]=["ficon2"],
                        a[3]=["ficon3"],
                        a[8]=["ficon8"],
                        a[28]=["ficon28"],
                        a[20]=["ficon20"],
                        a[33]=["ficon33"],
                        a[41]=["ficon41"],
                        a[48]=["ficon48"],
                        a[63]=["ficon63"],
                        a[37]=["ficon37"],
                        a[60]=["ficon60"],
                        a[19]=["ficon19"],
                        a[25]=["ficon25"],
                        a[26]=["ficon26"],
                        a[21]=["ficon21"],
                        a[55]=["ficon55"],
                        jQuery(".forum a").each(function(){
                        var b=jQuery(this).attr("href").match(/^\/f(\d+)-/)[1];
                        void 0!==a[b]&&jQuery(this).closest("a").find(".material-icons").attr("class",a[b])
                        })});
                        
                             $(function(){
      $('.menu-left').click(function(){
        $('header').toggleClass('active'),
          $('#menu-left').toggleClass('active'),
        $('footer').toggleClass('active')
      });
      $('.menu-right').click(function(){$('#menu-right').toggleClass('active')});
    })();

 (function(){
 
  $('.menu-search').click(function(){
    $('#mobile-search, .menu-search').toggleClass('active')
  });
 
}());

Update mobile.js