Quote:
[UnauthorizedAccessException: Access to the path 'C:\Inetpub\vhosts\sssinfracity.com\httpdocs\Reports\Logistics_Report_by_Employee_on_12_29_2013.pdf' is denied.]
The error message is quite clear. You are trying to do some File operations on the above mentioned path, but your application is not permitted to do so.
So, you need to provide access rights to that folder in the hosted Server.