Fatal error: Uncaught Error: Interface 'Symfony\Component\HttpKernel\HttpKernelInterface' not found in /home/arroba/domains/arrobadesign.com.br/vendor/silex/silex/src/Silex/Application.php:43 Stack trace: #0 /home/arroba/domains/arrobadesign.com.br/vendor/composer/ClassLoader.php(571): include() #1 /home/arroba/domains/arrobadesign.com.br/vendor/composer/ClassLoader.php(428): Composer\Autoload\includeFile('/home/arroba/do...') #2 [internal function]: Composer\Autoload\ClassLoader->loadClass('Silex\\Applicati...') #3 /home/arroba/domains/arrobadesign.com.br/public_html/index.php(20): spl_autoload_call('Silex\\Applicati...') #4 {main} thrown in /home/arroba/domains/arrobadesign.com.br/vendor/silex/silex/src/Silex/Application.php on line 43