Oops. Email the server adminstrator at duane (at) fairsay.com and send him the web address or page you were trying to access so he can fix it.
This page is in place to stop one form of speculative attacks on the website - but if it is too "tight" then it accidently blocks legitimate traffic too.
Query string:
User agent: Wget/1.20.1 (linux-gnu)
IP Address: 2a0a:e5c0:2:2:0:c8ff:fe68:bf3f
Referrer: http://fairsay.com/events/past-events