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