These entries seem relevant:
Unfortunately, I don't know much about the lego client [and how to troubleshoot it].
That said, some very basic connection tests return rather unusual responses:
curl -Ii http://wp.hackensackmeridianhealth.org/.well-known/acme-challenge/Test_File-1234
HTTP/1.1 502 Bad Gateway
Transfer-Encoding: chunked
Date: Fri, 30 Dec 2022 01:31:38 GMT
curl -Ii https://wp.hackensackmeridianhealth.org/.well-known/acme-challenge/Test_File-1234
curl: (35) OpenSSL SSL_connect: SSL_ERROR_SYSCALL in connection to wp.hackensackmeridianhealth.org:443