Updating SQL Server By Uploading Excel Sheets in ASP.NET

Question

Good day everyone!

 

I am trying to update a table from my SQL Server by uploading an excel spreadsheet (excel 2013). In my local machine, it works like a charm. But when I deploy my system and accessing it through the web, it gives me the error below:

 

 

 I am using ASP.NET Webforms, C#, and SQL Server. Hope someone can assist me. Thank you