Drupal Error, Name is not valid for this server.

This is due to trusted host configuration of the serveur. It can produce when you change the domain name or 'trusted_host_patterns'. To resolve the probleme, add your new domain to the DRUPAL_ROOT/sites/SITE_FOLDER/settings.php (Ex: sites/defaults/settings.php)

Exemple : Domain name = newdomain.com
$settings['trusted_host_patterns'] = array(
  '^newdomain.com\.loc$',
  '^www\.newdomain.com\.loc$',
);