Hi Carm,
Sorry to hear you’re having trouble with your Cloud WP site installation. I think this could be an issue with PHP FPM or something similar. Could you copy/paste what you see in the URL bar into the forum here? That should tell us what the error is, it sounds like a 500 error of some sort.
These are usually just temporary but we can certainly check it out for you.
We look forward to hearing from you!