Security Exception in asp.net c# website

Question

hello,

 

i am facing an issue while deploying my website to godaddy server i.e.

 

i have a print as pdf function in my website it works locally but after hosting this site i am getting an error like " The application attempted to perform an operation not allowed by the security policy. To grant this application the required permission please contact your system administrator or change the application's trust level in the configuration file" . what is this error an dhow can i rectify it. anyone please help me to tackle this error.

 

thanking you in advance.