The server encountered an internal error or misconfiguration and was unable to complete your request

Hello All,

I've a peculiar problem,

I've used job module for job applications.As a admin when I try to contact the user from the Contact

View - Edit - Track - Contact

I get an error

The server encountered an internal error or misconfiguration and was unable to complete your request.

Please contact the server administrator, support@supportwebsite.com and inform them of the time the error occurred, and anything you might have done that may have caused the error.

More information about this error may be available in the server error log.

pl help me how to resolve this issue