DAPI server test can't connect

After a little hiatus, I’m attempting to work some more on my FMBF pages.

I had to renew my FM Server SSL, which I did.
I had to renew my FM Server license, which I did.

I go to FMBF and check my SERVERS and the DAPI test returns an error (see photo).

When I got to fmsdev.dallasanddoll.com, Safari tells me it can’t connect although I can connect to my database on my server using FileMaker Pro. My server is at my office (Mac Mini).

No VPN/firewall, etc. No changes were made on my router.

Where do I start in terms of diagnosing this issue?

What is the error you are getting when you use the bf servers test?