title: Letsencrypt certificate deleted causes apache2 to stop running
body: <p>Good evening,</p>
  <p>I deleted my letsencrypt certificated and caused my apache to stop running.
  AH00526: Syntax error on line 32 of /etc/apache2/sites-enabled/default-ssl.conf:
  SSLCertificateFile: file '/etc/letsencrypt/live/wall.sg/ssl-cert-snakeoil.pem' does not exist or is empty
  Action 'configtest' failed.</p>
  <p>I checked on the directory , this line that cause error is not finding the path. How can i install back the certificate and fix this issue?</p>
  <p>I really appreciate someone could help me on this</p>