Hello @ssj4evostevo, welcome to the Let's Encrypt community. 
It seems there possibly is some Geo Blocking happening.
See: for HTTP Permanent link to this check report and for HTTPS Permanent link to this check report
Regarding Geo Blocking please read:
- Let's Encrypt is adding two new remote perspectives for domain validation
- Multi-Perspective Validation & Geoblocking FAQ
- Unexpected renewal failures since April 2024? Please read this!
Edit
Here is a list of issued certificates crt.sh | buya.com
and the certificate presently being served SSL Checker
which is this certificate crt.sh | 13000999130
and has a Validity
Not Before: Apr 18 16:12:24 2024 GMT
Not After : May 20 16:12:24 2025 GMT
The online tool Let's Debug yeilds these results https://letsdebug.net/buya.com/2298794 of "OK"