Fatal error: Uncaught exception 'sfCacheException' with message 'Failed to make cache directory "/var/www/html/cache/front/prod/config" while generating cache for configuration file "config/config_handlers.yml".' in /var/www/html/lib/vendor/symfony/lib/config/sfConfigCache.class.php:340 Stack trace: #0 /var/www/html/lib/vendor/symfony/lib/config/sfConfigCache.class.php(110): sfConfigCache->writeCacheFile('config/config_h...', '/var/www/html/c...', '<?php\n// auto-g...') #1 /var/www/html/lib/vendor/symfony/lib/config/sfConfigCache.class.php(197): sfConfigCache->callHandler('config/config_h...', Array, '/var/www/html/c...') #2 /var/www/html/lib/vendor/symfony/lib/config/sfConfigCache.class.php(279): sfConfigCache->checkConfig('config/config_h...') #3 /var/www/html/lib/vendor/symfony/lib/config/sfConfigCache.class.php(54): sfConfigCache->loadConfigHandlers() #4 /var/www/html/lib/vendor/symfony/lib/config/sfConfigCache.class.php(197): sfConfigCache->callHandler('config/core_com...', Array, '/var/www/html/c...') #5 /var/www/ht in /var/www/html/lib/vendor/symfony/lib/config/sfConfigCache.class.php on line 340