Warning: count(): Parameter must be an array or an object that implements Countable in /var/www/html/vendor/symfony/monolog-bundle/DependencyInjection/Configuration.php on line 648

Warning: count(): Parameter must be an array or an object that implements Countable in /var/www/html/vendor/symfony/monolog-bundle/DependencyInjection/Configuration.php on line 648

Warning: count(): Parameter must be an array or an object that implements Countable in /var/www/html/vendor/symfony/monolog-bundle/DependencyInjection/Configuration.php on line 648

Fatal error: Uncaught JMS\Serializer\Exception\RuntimeException: Could not create cache directory "/var/www/html/app/cache/prod/serializer". in /var/www/html/vendor/jms/serializer-bundle/JMS/SerializerBundle/DependencyInjection/JMSSerializerExtension.php:72 Stack trace: #0 /var/www/html/vendor/symfony/symfony/src/Symfony/Component/HttpKernel/DependencyInjection/ConfigurableExtension.php(35): JMS\SerializerBundle\DependencyInjection\JMSSerializerExtension->loadInternal(Array, Object(Symfony\Component\DependencyInjection\ContainerBuilder)) #1 /var/www/html/vendor/symfony/symfony/src/Symfony/Component/DependencyInjection/Compiler/MergeExtensionConfigurationPass.php(55): Symfony\Component\HttpKernel\DependencyInjection\ConfigurableExtension->load(Array, Object(Symfony\Component\DependencyInjection\ContainerBuilder)) #2 /var/www/html/vendor/symfony/symfony/src/Symfony/Component/HttpKernel/DependencyInjection/MergeExtensionConfigurationPass.php(39): Symfony\Component\DependencyInjection\Compiler\MergeExtensionConfigurationPass- in /var/www/html/vendor/jms/serializer-bundle/JMS/SerializerBundle/DependencyInjection/JMSSerializerExtension.php on line 72