I looked up the DNS records that are set for flowglobemedia.com and it looks like one of the records is incorrect:
$ dig flowglobemedia.com
;; QUESTION SECTION:
;flowglobemedia.com. IN A
;; ANSWER SECTION:
flowglobemedia.com. 492 IN A 184.168.221.33 < This is incorrect
flowglobemedia.com. 492 IN A 23.235.33.229 < This is correct
The DNS entries should be: 23.235.33.229 and 104.156.81.229
You’re seeing the 503s when your browser is connecting to 184.168.221.33 which is a GoDaddy IP.
Updating your DNS records should fix it, let me know if that doesn’t work!
I followed theses instructions Connect a custom domain | Webflow University, which should have gotten me there. And, I’m looking at the settings that I think should be right, so I’m not sure what the issue is.
I’m confused now - the screenshots you posted are for a different domain (and have the wrong IP for connecting to Webflow). Is it possible you screenshotted the wrong page?