Error 404: No such user found

[CaramelCloud]

The full text looks like this: "Error 404: No such user found
The server encountered a problem processing your request. If you keep getting this error and feel you should not. Don't hesitate to contact us."

I just recently registered and when I open the tab with my auctions error that such a user is not found, and when you re-register can not log in to your account because the data is entered incorrectly, although everything is correct and my browser saved the password from this service