Facebook log in problems

[nwachatter]

Hi,

When logged out and wanting to test facebook log in, sometimes I get this page, other times I don't and can sign in with facebook. Any ideas why?

http://www.nwachat.com/

 

Internal Server Error

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

Please contact the server administrator, 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.