The Remote server returned an error (404) not found in SharePoint Client Context code

Hi All,

I am getting an error with below line.

"The Remote server returned an error (404) not found"

It occurs when I am trying to fetch some data from SharePoint 2010 List.

For eg. I have a webpart in which i am showing some content on page load and that content is coming from a List.

But I am getting error.

Screen shot for your reference.