Ok, then ... please try this yourself:
In your screen shot I see the URL is:
spacechat.spaceipedia.org
A curl test:
curl -I https://spacechat.spaceipedia.org/
shows a cookie from a moodle:
X-Redirect-By: Moodle
redirecting to a:
Location: http://test.spaceipedia.org/
Note: the location line is http:// That's not good! Everything web based these days should be using https ... with valid certs. test.spaceipedia.org doesn't appear to have a valid certs - lock icon in FireFox browser says so!
Since it's redirecting to test. a curl test at that shows a couple of things of interest:
X-Powered-By: Statamic
which you say (Statamic) is on another server?
And ...
a Set-Cookie: XSRF-TOKEN
+
Set-Cookie: spaceipedia_session
Since non of us 'volunteers' in this forum have an account on your moodle, we can't see this page before dashboard you are talking about.
Best of luck!
'SoS', Ken