A test authorization for hub.quickbydesign.co.uk to the Let's Encrypt staging service has revealed issues that may prevent any certificate for this domain being issued.
46.18.52.126: Fetching http://hub.quickbydesign.co.uk/.well-known/acme-challenge/jjz1HSDHaCMvrA16YAxYxZxgpEtOjNdP-zEzFRb4axo: Timeout during connect (likely firewall problem)