Exception: Warning: Use of undefined constant MCRYPT_BLOWFISH - assumed 'MCRYPT_BLOWFISH' (this will throw an Error in a future version of PHP) in /var/www/html/vendor/magento/framework/Encryption/Encryptor.php on line 397 in /var/www/html/vendor/magento/framework/App/ErrorHandler.php:61
Stack trace:
#0 /var/www/html/vendor/magento/framework/Encryption/Encryptor.php(397): Magento\Framework\App\ErrorHandler->handler()
#1 /var/www/html/vendor/magento/framework/Encryption/Encryptor.php(313): Magento\Framework\Encryption\Encryptor->getCrypt()
#2 /var/www/html/vendor/magento/module-config/Model/Config/Backend/Encrypted.php(109): Magento\Framework\Encryption\Encryptor->decrypt()
#3 /var/www/html/var/generation/Magento/Config/Model/Config/Backend/Encrypted/Interceptor.php(37): Magento\Config\Model\Config\Backend\Encrypted->processValue()
#4 /var/www/html/vendor/magento/framework/App/Config/MetadataProcessor.php(86): Magento\Config\Model\Config\Backend\Encrypted\Interceptor->processValue()
#5 /var/www/html/vendor/magento/framework/App/Config/Data.php(33): Magento\Framework\App\Config\MetadataProcessor->process()
#6 /var/www/html/vendor/magento/framework/ObjectManager/Factory/AbstractFactory.php(93): Magento\Framework\App\Config\Data->__construct()
#7 /var/www/html/vendor/magento/framework/ObjectManager/Factory/Dynamic/Developer.php(89): Magento\Framework\ObjectManager\Factory\AbstractFactory->createObject()
#8 /var/www/html/vendor/magento/framework/ObjectManager/ObjectManager.php(57): Magento\Framework\ObjectManager\Factory\Dynamic\Developer->create()
#9 /var/www/html/vendor/magento/framework/App/Config/DataFactory.php(46): Magento\Framework\ObjectManager\ObjectManager->create()
#10 /var/www/html/vendor/magento/framework/App/Config/ScopePool.php(118): Magento\Framework\App\Config\DataFactory->create()
#11 /var/www/html/vendor/magento/framework/App/Config.php(45): Magento\Framework\App\Config\ScopePool->getScope()
#12 /var/www/html/vendor/magento/framework/App/Config.php(58): Magento\Framework\App\Config->getValue()
#13 /var/www/html/vendor/magento/module-store/Model/HeaderProvider/Hsts.php(48): Magento\Framework\App\Config->isSetFlag()
#14 /var/www/html/vendor/magento/framework/App/Response/HeaderManager.php(41): Magento\Store\Model\HeaderProvider\Hsts->canApply()
#15 /var/www/html/vendor/magento/framework/Interception/Interceptor.php(123): Magento\Framework\App\Response\HeaderManager->beforeSendResponse()
#16 /var/www/html/var/generation/Magento/Framework/App/Response/Http/Interceptor.php(117): Magento\Framework\App\Response\Http\Interceptor->___callPlugins()
#17 /var/www/html/vendor/magento/framework/App/Http.php(185): Magento\Framework\App\Response\Http\Interceptor->sendResponse()
#18 /var/www/html/vendor/magento/framework/App/Http.php(156): Magento\Framework\App\Http->handleDeveloperMode()
#19 /var/www/html/vendor/magento/framework/App/Bootstrap.php(263): Magento\Framework\App\Http->catchException()
#20 /var/www/html/index.php(39): Magento\Framework\App\Bootstrap->run()
#21 {main}