Fatal error: Uncaught RuntimeException: Cache directory "/var/www/html/app/cache/prod" is not writable. in /var/www/html/vendor/symfony/symfony/src/Symfony/Component/ClassLoader/ClassCollectionLoader.php:280 Stack trace: #0 /var/www/html/vendor/symfony/symfony/src/Symfony/Component/ClassLoader/ClassCollectionLoader.php(159): Symfony\Component\ClassLoader\ClassCollectionLoader::writeCacheFile('/var/www/html/a...', '<?php \nnamespac...') #1 /var/www/html/app/bootstrap.php.cache(2637): Symfony\Component\ClassLoader\ClassCollectionLoader::load(Array, Array, 'classes', false, false, '.php') #2 /var/www/html/app/bootstrap.php.cache(2469): Symfony\Component\HttpKernel\Kernel->doLoadClassCache('classes', '.php') #3 /var/www/html/app/bootstrap.php.cache(2503): Symfony\Component\HttpKernel\Kernel->boot() #4 /var/www/html/web/app.php(30): Symfony\Component\HttpKernel\Kernel->handle(Object(Symfony\Component\HttpFoundation\Request)) #5 {main} thrown in /var/www/html/vendor/symfony/symfony/src/Symfony/Component/ClassLoader/ClassCollectionLoader.php on line 280