Fix Automatic Quantity Update code on WooCommerce

I had someone from Freelancer build this code and it worked for awhile, but something happened and now it doesn't work. Can you problem solve this issue? If you're not from the US or UK, you should have received above 90% on your english exam. Otherwise, I won't even look at your proposal. Communication is priority #1. Cart location (must add an item, first): [login to view URL] Code: <script> $(document).ready(function(){ }); function update_cart_data(val) { // $(this).hasClass('minus'); jQuery('.load_data').css('display','block'); jQuery('.overlay').css('display','block'); var keyid=val; var qty=parseInt($("#q"+val).val()); var qty=parseInt(qty)+1; //alert(qty); data_var='pid='+keyid+"@qty="+qty; // alert(data_var); [login to view URL]('<?php echo bloginfo('template_url');?>/[login to view URL]'+data_var,function(data){ }).always(function() { [login to view URL]('<?php echo bloginfo('template_url');?>/[login to view URL]',function(data){ $('#checkout').html(data); }).always(function() {$('.load_data').hide();$('.overlay').hide();}); }); } function update_cart_data1(val) { // $(this).hasClass('minus'); jQuery('.load_data').css('display','block'); jQuery('.overlay').css('display','block'); var keyid=val; var qty=parseInt($("#q"+val).val()); if(qty > 1) { qty=parseInt(qty)-1; } data_var='pid='+keyid+"@qty="+qty; // alert(data_var); [login to view URL]('<?php echo bloginfo('template_url');?>/[login to view URL]'+data_var,function(data){ }).always(function() { [login to view URL]('<?php echo bloginfo('template_url');?>/[login to view URL]',function(data){ $('#checkout').html(data); }).always(function() {$('.load_data').hide();$('.overlay').hide();}); }); } </script>