Let's Debug

Test result for new.systematicpoliticalscience.com using http-01

Error
new.systematicpoliticalscience.com has an A (IPv4) record (54.218.143.2) but a request to this address over port 80 did not succeed. Your web server must have at least one working IPv4 or IPv6 address.
A timeout was experienced while communicating with new.systematicpoliticalscience.com/54.218.143.2: Get http://new.systematicpoliticalscience.com/.well-known/acme-challenge/letsdebug-test: dial tcp 54.218.143.2:80: i/o timeout

Trace:
@0ms: Making a request to http://new.systematicpoliticalscience.com/.well-known/acme-challenge/letsdebug-test (using initial IP 54.218.143.2)
@0ms: Dialing 54.218.143.2
@10000ms: Experienced error: dial tcp 54.218.143.2:80: i/o timeout
A test authorization for new.systematicpoliticalscience.com to the Let's Encrypt staging service has revealed issues that may prevent any certificate for this domain being issued.
Fetching http://new.systematicpoliticalscience.com/.well-known/acme-challenge/_d0kY11a5T8J7DpN_GXMR_7yjTO4KY9IVy_DsHiIgcc: Timeout during connect (likely firewall problem)

Submitted May 29 13:53:05 2020. Sat in queue for 2ms. Completed in 22s. Show verbose information.