Fatal error: Uncaught Error: Class "Mageplaza\Core\Helper\AbstractData" not found in /home/capitalclouds/public_html/app/code/Mageplaza/Smtp/Helper/Data.php:33 Stack trace: #0 /home/capitalclouds/public_html/vendor/composer/ClassLoader.php(576): include() #1 /home/capitalclouds/public_html/vendor/composer/ClassLoader.php(427): Composer\Autoload\{closure}('/home/capitalcl...') #2 /home/capitalclouds/public_html/app/code/Mageplaza/Smtp/Helper/EmailMarketing.php(98): Composer\Autoload\ClassLoader->loadClass('Mageplaza\\Smtp\\...') #3 /home/capitalclouds/public_html/vendor/composer/ClassLoader.php(576): include('/home/capitalcl...') #4 /home/capitalclouds/public_html/vendor/composer/ClassLoader.php(427): Composer\Autoload\{closure}('/home/capitalcl...') #5 [internal function]: Composer\Autoload\ClassLoader->loadClass('Mageplaza\\Smtp\\...') #6 /home/capitalclouds/public_html/vendor/magento/framework/ObjectManager/Relations/Runtime.php(38): class_exists('Mageplaza\\Smtp\\...') #7 /home/capitalclouds/public_html/vendor/magento/framework/Interception/Config/Config.php(157): Magento\Framework\ObjectManager\Relations\Runtime->has('Mageplaza\\Smtp\\...') #8 /home/capitalclouds/public_html/vendor/magento/framework/Interception/Config/Config.php(180): Magento\Framework\Interception\Config\Config->_inheritInterception('Mageplaza\\Smtp\\...') #9 /home/capitalclouds/public_html/vendor/magento/framework/Interception/Config/Config.php(213): Magento\Framework\Interception\Config\Config->hasPlugins('Mageplaza\\Smtp\\...') #10 /home/capitalclouds/public_html/vendor/magento/framework/Interception/Config/Config.php(190): Magento\Framework\Interception\Config\Config->generateIntercepted(Array) #11 /home/capitalclouds/public_html/vendor/magento/framework/Interception/Config/Config.php(122): Magento\Framework\Interception\Config\Config->initializeUncompiled(Array) #12 /home/capitalclouds/public_html/vendor/magento/framework/ObjectManager/Factory/AbstractFactory.php(121): Magento\Framework\Interception\Config\Config->__construct(Object(Magento\Framework\ObjectManager\Config\Reader\Dom\Proxy), Object(Magento\Framework\Config\Scope), Object(Magento\Framework\App\Cache\Type\Config), Object(Magento\Framework\ObjectManager\Relations\Runtime), Object(Magento\Framework\Interception\ObjectManager\Config\Developer), Object(Magento\Framework\ObjectManager\Definition\Runtime), 'interception', NULL, NULL) #13 /home/capitalclouds/public_html/vendor/magento/framework/ObjectManager/Factory/Dynamic/Developer.php(66): Magento\Framework\ObjectManager\Factory\AbstractFactory->createObject('Magento\\Framewo...', Array) #14 /home/capitalclouds/public_html/vendor/magento/framework/ObjectManager/ObjectManager.php(73): Magento\Framework\ObjectManager\Factory\Dynamic\Developer->create('Magento\\Framewo...') #15 /home/capitalclouds/public_html/vendor/magento/framework/App/ObjectManager/Environment/Developer.php(84): Magento\Framework\ObjectManager\ObjectManager->get('Magento\\Framewo...') #16 /home/capitalclouds/public_html/vendor/magento/framework/App/ObjectManagerFactory.php(191): Magento\Framework\App\ObjectManager\Environment\Developer->configureObjectManager(Object(Magento\Framework\Interception\ObjectManager\Config\Developer), Array) #17 /home/capitalclouds/public_html/vendor/magento/framework/App/Bootstrap.php(212): Magento\Framework\App\ObjectManagerFactory->create(Array) #18 /home/capitalclouds/public_html/vendor/magento/framework/App/Bootstrap.php(127): Magento\Framework\App\Bootstrap->__construct(Object(Magento\Framework\App\ObjectManagerFactory), '/home/capitalcl...', Array) #19 /home/capitalclouds/public_html/pub/index.php(27): Magento\Framework\App\Bootstrap::create('/home/capitalcl...', Array) #20 {main} thrown in /home/capitalclouds/public_html/app/code/Mageplaza/Smtp/Helper/Data.php on line 33