Exception: Deprecated Functionality: Function mcrypt_module_open() is deprecated in /home/ledverli/public_html_quan/vendor/magento/framework/Encryption/Crypt.php on line 54 in /home/ledverli/public_html_quan/vendor/magento/framework/App/ErrorHandler.php:61 Stack trace: #0 /home/ledverli/public_html_quan/vendor/magento/framework/Encryption/Crypt.php(54): Magento\Framework\App\ErrorHandler->handler(8192, 'Function mcrypt...', '/home/ledverli/...', 54, Array) #1 /home/ledverli/public_html_quan/vendor/magento/framework/Encryption/Encryptor.php(401): Magento\Framework\Encryption\Crypt->__construct('5oxgsqwanpgnjp8...', 'blowfish', 'ecb', false) #2 /home/ledverli/public_html_quan/vendor/magento/framework/Encryption/Encryptor.php(313): Magento\Framework\Encryption\Encryptor->getCrypt('5oxgsqwanpgnjp8...', 0, false) #3 /home/ledverli/public_html_quan/vendor/magento/module-config/Model/Config/Backend/Encrypted.php(109): Magento\Framework\Encryption\Encryptor->decrypt('PayPal') #4 /home/ledverli/public_html_quan/var/generation/Magento/Config/Model/Config/Backend/Encrypted/Interceptor.php(37): Magento\Config\Model\Config\Backend\Encrypted->processValue('PayPal') #5 /home/ledverli/public_html_quan/vendor/magento/framework/App/Config/MetadataConfigTypeProcessor.php(88): Magento\Config\Model\Config\Backend\Encrypted\Interceptor->processValue('PayPal') #6 /home/ledverli/public_html_quan/vendor/magento/framework/App/Config/MetadataConfigTypeProcessor.php(106): Magento\Framework\App\Config\MetadataConfigTypeProcessor->processScopeData(Array) #7 /home/ledverli/public_html_quan/vendor/magento/framework/App/Config/PostProcessorComposite.php(34): Magento\Framework\App\Config\MetadataConfigTypeProcessor->process(Array) #8 /home/ledverli/public_html_quan/vendor/magento/module-config/App/Config/Type/System/Reader.php(73): Magento\Framework\App\Config\PostProcessorComposite->process(Array) #9 /home/ledverli/public_html_quan/var/generation/Magento/Config/App/Config/Type/System/Reader/Proxy.php(95): Magento\Config\App\Config\Type\System\Reader->read() #10 /home/ledverli/public_html_quan/vendor/magento/module-config/App/Config/Type/System.php(212): Magento\Config\App\Config\Type\System\Reader\Proxy->read() #11 /home/ledverli/public_html_quan/vendor/magento/module-config/App/Config/Type/System.php(170): Magento\Config\App\Config\Type\System->loadDefaultScopeData('default') #12 /home/ledverli/public_html_quan/vendor/magento/framework/App/Config.php(139): Magento\Config\App\Config\Type\System->get('default/web/sec...') #13 /home/ledverli/public_html_quan/vendor/magento/framework/App/Config.php(90): Magento\Framework\App\Config->get('system', 'default/web/sec...') #14 /home/ledverli/public_html_quan/vendor/magento/framework/App/Config.php(103): Magento\Framework\App\Config->getValue('web/secure/use_...', 'default', NULL) #15 /home/ledverli/public_html_quan/vendor/magento/module-store/Model/HeaderProvider/Hsts.php(48): Magento\Framework\App\Config->isSetFlag('web/secure/use_...') #16 /home/ledverli/public_html_quan/vendor/magento/framework/App/Response/HeaderManager.php(41): Magento\Store\Model\HeaderProvider\Hsts->canApply() #17 /home/ledverli/public_html_quan/vendor/magento/framework/Interception/Interceptor.php(123): Magento\Framework\App\Response\HeaderManager->beforeSendResponse(Object(Magento\Framework\App\Response\Http\Interceptor)) #18 /home/ledverli/public_html_quan/var/generation/Magento/Framework/App/Response/Http/Interceptor.php(117): Magento\Framework\App\Response\Http\Interceptor->___callPlugins('sendResponse', Array, Array) #19 /home/ledverli/public_html_quan/vendor/magento/framework/App/Http.php(185): Magento\Framework\App\Response\Http\Interceptor->sendResponse() #20 /home/ledverli/public_html_quan/vendor/magento/framework/App/Http.php(156): Magento\Framework\App\Http->handleDeveloperMode(Object(Magento\Framework\App\Bootstrap), Object(Exception)) #21 /home/ledverli/public_html_quan/vendor/magento/framework/App/Bootstrap.php(263): Magento\Framework\App\Http->catchException(Object(Magento\Framework\App\Bootstrap), Object(Exception)) #22 /home/ledverli/public_html_quan/index.php(39): Magento\Framework\App\Bootstrap->run(Object(Magento\Framework\App\Http)) #23 {main}