File Upload in IIS Error: A generic error occurred in GDI+

I have uploaded my project on the server(Bigrock). but when i try to upload documents it gives me an error A generic error occurred in GDI.

It is working fine on my localhost.

    protected void attach_Click(object sender, EventArgs e)
    {
        List<HttpPostedFile> files = new List<HttpPostedFile>();       
        for (int i = 0; i < Request.Files.Count; i++)
        {
            files.Add(Request.Files[i]);
        }
        lstview.DataSource = (from f in files select new { Text = f.FileName }).ToList();
        lstview.DataBind();
        Session["Files"] = files;        
    }

<asp:FileUpload ID="uploadresume" multiple="true" Class="multi" runat="server" />
<asp:Button ID="attach" runat="server" Text="Attached" OnClick="attach_Click" CssClass="btn-yellow" style="margin-left:30px;" />                
<asp:Button ID="upload" runat="server" Text="upload" OnClick="upload_Click" CssClass="btn-blue" />

    <script language="javascript" type="text/javascript">
        function AddMoreImages() {
            if (!document.getElementById && !document.createElement)
                return false;
            var fileUploadarea = document.getElementById("fileUploadarea");
            if (!fileUploadarea)
                return false;
            var newLine = document.createElement("br");
            fileUploadarea.appendChild(newLine);
            var newFile = document.createElement("input");
            newFile.type = "file";
            newFile.setAttribute("class", "fileUpload");

            if (!AddMoreImages.lastAssignedId)
                AddMoreImages.lastAssignedId = 100;
            newFile.setAttribute("id", "FileUpload" + AddMoreImages.lastAssignedId);
            newFile.setAttribute("name", "FileUpload" + AddMoreImages.lastAssignedId);
            var div = document.createElement("div");
            div.appendChild(newFile);
            div.setAttribute("id", "div" + AddMoreImages.lastAssignedId);
            fileUploadarea.appendChild(div);
            AddMoreImages.lastAssignedId++;
        }
    </script>
    <script type="text/javascript">
        function callme() {
            document.getElementById('<%=uploadresume.ClientID%>').value = document.getElementById('<%=uploadresume.ClientID %>').value;
        }
    </script>