GMDatepicker's 'Next' and 'Previous' month image icons are not loading

Hi Friends,

          We have a datepicker control from GrayMatterSoft called GMDatePicker(dll). This date picker was working fine don't know what happened to this control now the navigation icons to move from one month to another month icons are not loading.

To know the actual problem i've hosted a single page with that date picker control in one of our server and in that it is working fine. For reference please check the below URL:

http://180.87.33.58/GMDatePicker/

When i inspect the element then i found that the image's url is from webresource.axd?

Please help me to fix this issue.

Thanks,

Ravikumar G