Fatal error: Uncaught UnexpectedValueException: The stream or file "/var/www/app/logs/prod.log" could not be opened in append mode: failed to open stream: Permission denied in /var/www/app/cache/prod/classes.php:5496 Stack trace: #0 /var/www/app/cache/prod/classes.php(5424): Monolog\Handler\StreamHandler->write(Array) #1 /var/www/app/cache/prod/classes.php(5609): Monolog\Handler\AbstractProcessingHandler->handle(Array) #2 /var/www/app/cache/prod/classes.php(5987): Monolog\Handler\FingersCrossedHandler->handle(Array) #3 /var/www/app/cache/prod/classes.php(6140): Monolog\Logger->addRecord(500, 'Uncaught PHP Ex...', Array) #4 /var/www/vendor/symfony/symfony/src/Symfony/Component/HttpKernel/EventListener/ExceptionListener.php(102): Monolog\Logger->critical('Uncaught PHP Ex...', Array) #5 /var/www/vendor/symfony/symfony/src/Symfony/Component/HttpKernel/EventListener/ExceptionListener.php(50): Symfony\Component\HttpKernel\EventListener\ExceptionListener->logException(Object(UnexpectedValueException), 'Uncaught PHP Ex...') #6 [i in /var/www/app/cache/prod/classes.php on line 5496