I ca't enter the MKRfox1200 contest!

Whenever I click register as participant on the MKRfox1200 contest page, it loads a while and then says, '503 first bite timeout'. How can I fix this? I have tried it on different computers, on both chrome and Microsoft edge, and I have an Arduino account. please help!

complete error message:

Error 503 first byte timeout
first byte timeout
Guru Mediation:
Details: cache-iad2140-IAD 1501462045 4157963874

Varnish cache server

Whenever I click register as participant on the MKRfox1200 contest page

What does this have to do with interfacing with software on the PC?

At a minimum, you'd need to post a link to "the contest page".