Deployment of ASP.Net website in IIS

Question

Hi, I have a simple ASP.Net web application which reads the data from an Excel file and displays its content in web page on a button click event. I have deployed the website in IIS (Windows Server 2012 R2), it is working fine till login, but nothing happens when I click the button and try to load the excel data in webpage.

 

I have tried the same solution locally on the same server machine and it is working fine on that but after deployment it doesn't work. Can anyone plese tell what could be the issue. Even I am not getting any kind of error in console, just page gets refresh but data is not displaying. Could it be any permission related issue??

 

Thanks in advance...