support I'm struggling with a Wordpress Multi Site setup.

Hello support

I'm struggling with a Wordpress Multi Site setup.
Everything has been working fine until today, but suddenly I'm experiencing a redirect error.
Chrome is redirecting from the url: http://cloudpr.es to http://cloudpr.es/wp-signup.php?new=cloudpr.es
Furthermore I get the following error message in Chrome: "This web page has a redirect loop".

The only thing I've done is installing more databases via CPanel.

Can you please help me to pin point the problem?

Thanks in advance (-: