Ray blank page

I just installed ray but the problem I have a blank page.

what should I do please?

Here is my site:

www.atlas-tchat.com

I thank you in advance for your kind help

Did you add your licences?

Should your site be only Ray?

Do you have dolphin as well?

You should be a bit more specific, especially if only a blank page can be seen.

not this is not the dolphin cms that I install is ray.

thank you for your answers