Exception: Warning: Use of undefined constant MCRYPT_RIJNDAEL_256 - assumed 'MCRYPT_RIJNDAEL_256' (this will throw an Error in a future version of PHP) in /home/francois/projects/newjerseyparis/src/vendor/magento/framework/Encryption/Encryptor.php on line 394 in /home/francois/projects/newjerseyparis/src/vendor/magento/framework/App/ErrorHandler.php:61 Stack trace: #0 /home/francois/projects/newjerseyparis/src/vendor/magento/framework/Encryption/Encryptor.php(394): Magento\Framework\App\ErrorHandler->handler() #1 /home/francois/projects/newjerseyparis/src/vendor/magento/framework/Encryption/Encryptor.php(313): Magento\Framework\Encryption\Encryptor->getCrypt() #2 /home/francois/projects/newjerseyparis/src/vendor/magento/framework/Serialize/Serializer/Sensitive.php(59): Magento\Framework\Encryption\Encryptor->decrypt() #3 /home/francois/projects/newjerseyparis/src/vendor/magento/module-config/App/Config/Type/System.php(235): Magento\Framework\Serialize\Serializer\Sensitive->unserialize() #4 /home/francois/projects/newjerseyparis/src/vendor/magento/module-config/App/Config/Type/System.php(171): Magento\Config\App\Config\Type\System->loadScopeData() #5 /home/francois/projects/newjerseyparis/src/vendor/magento/framework/App/Config.php(131): Magento\Config\App\Config\Type\System->get() #6 /home/francois/projects/newjerseyparis/src/vendor/magento/framework/App/Config.php(80): Magento\Framework\App\Config->get() #7 /home/francois/projects/newjerseyparis/src/vendor/magento/module-developer/Model/Logger/Handler/Debug.php(63): Magento\Framework\App\Config->getValue() #8 /home/francois/projects/newjerseyparis/src/vendor/monolog/monolog/src/Monolog/Handler/AbstractProcessingHandler.php(31): Magento\Developer\Model\Logger\Handler\Debug->isHandling() #9 /home/francois/projects/newjerseyparis/src/vendor/monolog/monolog/src/Monolog/Logger.php(344): Monolog\Handler\AbstractProcessingHandler->handle() #10 /home/francois/projects/newjerseyparis/src/vendor/magento/framework/Logger/Monolog.php(48): Monolog\Logger->addRecord() #11 /home/francois/projects/newjerseyparis/src/vendor/monolog/monolog/src/Monolog/Logger.php(707): Magento\Framework\Logger\Monolog->addRecord() #12 /home/francois/projects/newjerseyparis/src/vendor/magento/framework/App/Bootstrap.php(262): Monolog\Logger->error() #13 /home/francois/projects/newjerseyparis/src/index.php(39): Magento\Framework\App\Bootstrap->run() #14 {main}