Fatal error: Uncaught Error: Class "Magento\Framework\Component\ComponentRegistrar" not found in /var/www/html/vendor/magento/framework/registration.php:9
Stack trace:
#0 /var/www/html/vendor/composer/autoload_real.php(55): require()
#1 /var/www/html/vendor/composer/autoload_real.php(38): composerRequirea0c077bccc3fdda4591f07cab6e208dc()
#2 /var/www/html/vendor/autoload.php(12): ComposerAutoloaderInita0c077bccc3fdda4591f07cab6e208dc::getLoader()
#3 /var/www/html/app/autoload.php(51): include('...')
#4 /var/www/html/app/bootstrap.php(44): require_once('...')
#5 /var/www/html/pub/index.php(12): require('...')
#6 {main}
thrown in /var/www/html/vendor/magento/framework/registration.php on line 9