Fatal error: Uncaught Error: Class "Mageplaza\Core\Helper\AbstractData" not found in /bitnami/magento/app/code/Mageplaza/Smtp/Helper/Data.php:33 Stack trace: #0 /bitnami/magento/vendor/composer/ClassLoader.php(576): include() #1 /bitnami/magento/vendor/composer/ClassLoader.php(427): Composer\Autoload\{closure}() #2 /bitnami/magento/app/code/Mageplaza/Smtp/Helper/EmailMarketing.php(98): Composer\Autoload\ClassLoader->loadClass() #3 /bitnami/magento/vendor/composer/ClassLoader.php(576): include('...') #4 /bitnami/magento/vendor/composer/ClassLoader.php(427): Composer\Autoload\{closure}() #5 [internal function]: Composer\Autoload\ClassLoader->loadClass() #6 /bitnami/magento/vendor/magento/framework/ObjectManager/Relations/Runtime.php(38): class_exists() #7 /bitnami/magento/vendor/magento/framework/Interception/Config/Config.php(157): Magento\Framework\ObjectManager\Relations\Runtime->has() #8 /bitnami/magento/vendor/magento/framework/Interception/Config/Config.php(180): Magento\Framework\Interception\Config\Config->_inheritInterception() #9 /bitnami/magento/vendor/magento/framework/Interception/Config/Config.php(213): Magento\Framework\Interception\Config\Config->hasPlugins() #10 /bitnami/magento/vendor/magento/framework/Interception/Config/Config.php(190): Magento\Framework\Interception\Config\Config->generateIntercepted() #11 /bitnami/magento/vendor/magento/framework/Interception/Config/Config.php(122): Magento\Framework\Interception\Config\Config->initializeUncompiled() #12 /bitnami/magento/vendor/magento/framework/ObjectManager/Factory/AbstractFactory.php(121): Magento\Framework\Interception\Config\Config->__construct() #13 /bitnami/magento/vendor/magento/framework/ObjectManager/Factory/Dynamic/Developer.php(66): Magento\Framework\ObjectManager\Factory\AbstractFactory->createObject() #14 /bitnami/magento/vendor/magento/framework/ObjectManager/ObjectManager.php(70): Magento\Framework\ObjectManager\Factory\Dynamic\Developer->create() #15 /bitnami/magento/vendor/magento/framework/App/ObjectManager/Environment/Developer.php(84): Magento\Framework\ObjectManager\ObjectManager->get() #16 /bitnami/magento/vendor/magento/framework/App/ObjectManagerFactory.php(191): Magento\Framework\App\ObjectManager\Environment\Developer->configureObjectManager() #17 /bitnami/magento/vendor/magento/framework/App/Bootstrap.php(212): Magento\Framework\App\ObjectManagerFactory->create() #18 /bitnami/magento/vendor/magento/framework/App/Bootstrap.php(127): Magento\Framework\App\Bootstrap->__construct() #19 /bitnami/magento/pub/index.php(26): Magento\Framework\App\Bootstrap::create() #20 {main} thrown in /bitnami/magento/app/code/Mageplaza/Smtp/Helper/Data.php on line 33