seguimosaprendiendo.educacion.rionegro.gov.ar has an A (IPv4) record (200.32.54.117) 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 seguimosaprendiendo.educacion.rionegro.gov.ar/200.32.54.117: Get http://seguimosaprendiendo.educacion.rionegro.gov.ar/.well-known/acme-challenge/letsdebug-test: dial tcp 200.32.54.117:80: i/o timeout
Trace:
@0ms: Making a request to http://seguimosaprendiendo.educacion.rionegro.gov.ar/.well-known/acme-challenge/letsdebug-test (using initial IP 200.32.54.117)
@0ms: Dialing 200.32.54.117
@10000ms: Experienced error: dial tcp 200.32.54.117:80: i/o timeout
A test authorization for seguimosaprendiendo.educacion.rionegro.gov.ar to the Let's Encrypt staging service has revealed issues that may prevent any certificate for this domain being issued.
Fetching http://seguimosaprendiendo.educacion.rionegro.gov.ar/.well-known/acme-challenge/sMADlT23nbSaW_pu-MIxEOTkkUJ9lHrpMODMD26gxjg: Timeout during connect (likely firewall problem)