Cloudflare Support will have sent you an automated email response. Make sure you have read and responded to their email.
In this case, I suspect that your origin server is the issue. Using what I suspect is your origin servers IP address, all requests return a 503.
% curl --resolve tstga.com:443:x.y.z.20 https://tstga.com/
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN""http://www.w3.org/TR/html4/strict.dtd">
<HTML><HEAD><TITLE>Service Unavailable</TITLE>
<META HTTP-EQUIV="Content-Type" Content="text/html; charset=us-ascii"></HEAD>
<BODY><h2>Service Unavailable</h2>
<hr><p>HTTP Error 503. The service is unavailable.</p>
</BODY></HTML>
You can Pause Cloudflare, resolve the issues with your origin, and then un-pause Cloudflare.
You can temporarily pause Cloudflare by:
Going to the Overview tab in the Cloudflare dashboard.
At the bottom right of this page there is a link under Advanced Actions .
I responded to the email immediately two days ago. I have been refreshing my email and never got anything else
I even tried a phone number, that didn’t get me anywhere and there is no chat… It’s very hard as Cloudflare doesn’t talk to customers even not premium clients.
The site is still active on Cloudflare, and your origin server still responds with 503s.
You need to pause Cloudflare and confirm that the issue is still there. If the error is still there, you have essentially confirmed that the issue is with the hosting. Leave Cloudflare Paused, and contact your hosting provider.