It is the "feedback" one on the Contact tab. When trying to e-mail you I get this error message after I click on submit.

 

 

Server Error in '/' Application.

---

At least one recipient is required, but none were found.

Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.Runtime.InteropServices.COMException: At least one recipient is required, but none were found.

Source Error:

An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.

Hope this helps