Fatal error: Uncaught UnexpectedValueException: The stream or file "/var/www/html/private/logs/error.log" could not be opened: failed to open stream: Permission denied in /var/www/html/vendor/monolog/monolog/src/Monolog/Handler/StreamHandler.php:87 Stack trace: #0 /var/www/html/vendor/monolog/monolog/src/Monolog/Handler/AbstractProcessingHandler.php(37): Monolog\Handler\StreamHandler->write(Array) #1 /var/www/html/vendor/monolog/monolog/src/Monolog/Logger.php(336): Monolog\Handler\AbstractProcessingHandler->handle(Array) #2 /var/www/html/vendor/monolog/monolog/src/Monolog/Logger.php(615): Monolog\Logger->addRecord(400, 'Symfony\\Compone...', Array) #3 /var/www/html/vendor/silex/silex/src/Silex/EventListener/LogListener.php(110): Monolog\Logger->error('Symfony\\Compone...', Array) #4 /var/www/html/vendor/silex/silex/src/Silex/EventListener/LogListener.php(73): Silex\EventListener\LogListener->logException(Object(Symfony\Component\HttpKernel\Exception\NotFoundHttpException)) #5 [internal function]: Silex\EventListener\LogLi in /var/www/html/vendor/monolog/monolog/src/Monolog/Handler/StreamHandler.php on line 87