MediaWiki domains can't be renewed, as they use a shared TLS Let's Encrypt certificate:
Attempting to renew cert (www.wolfplex.org) from /usr/local/etc/letsencrypt/renewal/www.wolfplex.org.conf produced an unexpected error: Failed authorization procedure. wiki.wolfplex.org (http-01): urn:acme:error:unauthorized :: The client lacks sufficient authorization :: Invalid response from http://wiki.wolfplex.org/.well-known/acme-challenge/K04xJNdQtyi3LA7gdVWgeFDnNwxPWMhoGjeiYDHInBY: "<!DOCTYPE html>\n<html class=\"client-nojs\" lang=\"fr\" dir=\"ltr\">\n<head>\n<meta charset=\"UTF-8\"/>\n<title>.well-known/acme-challenge/", wiki.wolfplex.be (http-01): urn:acme:error:unauthorized :: The client lacks sufficient authorization :: Invalid response from http://wiki.wolfplex.be/.well-known/acme-challenge/_YdjYOS4EkRnI9PxqR8rcTTAIP9o9ytuyiHEs6CGKU0: "<!DOCTYPE html>\n<html class=\"client-nojs\" lang=\"fr\" dir=\"ltr\">\n<head>\n<meta charset=\"UTF-8\"/>\n<title>.well-known/acme-challenge/". Skipping.