415 Unsupported Media Type Error - jqgrid

Question

I'm getting an error of
"415 Unsupported media type". I've tried the solutions provided already.But my problem is not solved.
Here is my Code for receiving loading jason data dynamically in jqgrid
jQuery(grid_selector).jqGrid({
contentType: "application/json",
datatype: "json",
height: 250,
colNames:['Workbook Name','Superior','Hierarchy','Usage', 'Created', 'Created by'],
colModel:[
{name:'name',index:'name', width:90,editable: true,formatter:function(rowId, val, rawObject, cm, rdata) {
return "<a href='1.1.1 Edit Workbook (Name).html' style='height:25px;width:120px;' type='button' >"+rawObject.name+"</a>";
},unformat:undoaddLink,search: true},
{name:'recordType',index:'recordType', width:90,formatter:function(rowId, val, rawObject, cm, rdata) {
return "<a href='#' type='button' >"+rawObject.recordType+"</a>";
},editable: true,editoptions: { readonly: 'readonly' },unformat:undoaddLinkparent,search: true},
{name:'hierarchy',index:'hierarchy', width:150,editoptions: { readonly: 'readonly' },formatter: setVal,search: true,unformat:undohierarchy},
{name:'usage',index:'usage', width:90,editable: true,editoptions: { readonly: 'readonly' },search: true,formatter:ChangeVal},
{name:'created',index:'created', width:70,editable: true, editoptions: { readonly: 'readonly' },search: true},
{name:'createdBy',index:'createdBy', width:90,editable: true,editoptions: { readonly: 'readonly' },search: true}
],
viewrecords : true,
rowNum:10,
rowList:[10,20,30],
pager : pager_selector,
altRows: true,
'cellEdit': true,
'cellsubmit' : 'clientArray',
editurl: 'clientArray',
multiselect: true,
multiboxonly: true,
sortable: true,
gridComplete: function() {
$("tr").not(':first').hover(
function () {
$(this).css("background","#CCCCFF");
},
function () {
$(this).css("background","");
}
);
},
loadComplete : function() {
var table = this;
setTimeout(function(){
styleCheckbox(table);
updateActionIcons(table);
updatePagerIcons(table);
enableTooltips(table);
}, 0);
},
});
I'm getting the jason data currectly in localhost.But in server I'm getting the error.
Thanks in advance