Warning: require(/var/www/html/drupal-8.8.5/vendor/autoload.php): failed to open stream: Permission denied in /var/www/html/drupal-8.8.5/autoload.php on line 16

Fatal error: require(): Failed opening required '/var/www/html/drupal-8.8.5/vendor/autoload.php' (include_path='.:/usr/share/php/navigami/config:/usr/share/php/navigami/nucleo:/usr/share/php/navigami/url:/usr/share/php:/usr/share/php/config') in /var/www/html/drupal-8.8.5/autoload.php on line 16