/var/www/html/magento/generated/code/Magento/Framework/App/Http/Interceptor.php.12876 file couldn't be written. in magento 2 code example

Example: ReflectionException: Class Magento\Framework\App\Http\Interceptor does not exist in

php bin/magento setup:upgrade

php bin/magento setup:di:compile

php bin/magento setup:static-content:Deploy -f

chmod -R 777 var/ generated/