Can't sign-up to KokeKloud for lab practice tests

Initially, it shows Please wait a moment as we create your user account… but after a minute, the message disappears and nothing happens on the page.

Do you have a link to which course this is? Is this a Udemy course where you are trying to access the labs.

Thank you for the response, but after a while, I figured it out, it was my Windows firewall that was the culprit.
Thanks anyway.
PS: Yes It’s a Udemy course.