title: Sys.WebForms.PageRequestManagerServerErrorException: Input string was not in a correct format
body: <p>Hi I am getting the error </p>
  
  <blockquote>
    <p>"Sys.WebForms.PageRequestManagerServerErrorException: Input string was not in a correct format."</p>
  </blockquote>
  
  <p>When pressing a delete button. But this error comes only in one web server. In other server it works fine. Again when locally running the application, there is no error but it will not firing the delete action. Any Idea??</p>