I don’t see any errors like that on my end. Please note that it can take some time for Cloudflare to do the initial setup of your domain too, I’ve seen their SSL setup take up to 24 hours too.
But it seems to be fixed now, at least from my end. I see a 404 error on your site now.
You should be able to, yes. Check the “Domains” page in your account’s client area to make sure the htdocs directory you’re creating is the one your website is linked to (for example, to ensure your website is linked to htdocs and not volecho.com/htdocs).
It looks like you moved in the HTML files of your site, but the assets folder, that contains all the images, stylesheets and scripts, still appears to be missing.
Can you please make sure that ALL website files are uploaded to the htdocs folder?