The reason why @polus123 sees a 404 error and @wasik405 sees a suspension page is actually the same issue: you removed the domain name from your account a few hours before you created this topic. And of course, if a domain name is no longer assigned to your account, you cannot show a website on it.
The fix is very simple: just add the domain to your account again. Once that’s done, you can setup your website on it.