Fatal error: Uncaught Error: Class "MailPoet\Form\Block\Heading" not found in /htdocs/wp-content/plugins/mailpoet/generated/FreeCachedContainer.php:3007 Stack trace: #0 /htdocs/wp-content/plugins/mailpoet/generated/FreeCachedContainer.php(2248): MailPoetGenerated\FreeCachedContainer->getRenderer2Service() #1 /htdocs/wp-content/plugins/mailpoet/generated/FreeCachedContainer.php(2276): MailPoetGenerated\FreeCachedContainer->getHooks2Service() #2 /htdocs/wp-content/plugins/mailpoet/vendor-prefixed/symfony/dependency-injection/Container.php(122): MailPoetGenerated\FreeCachedContainer->getInitializerService() #3 /htdocs/wp-content/plugins/mailpoet/vendor-prefixed/symfony/dependency-injection/Container.php(110): MailPoetVendor\Symfony\Component\DependencyInjection\Container->make('MailPoet\\Config...', 1) #4 /htdocs/wp-content/plugins/mailpoet/lib/DI/ContainerWrapper.php(39): MailPoetVendor\Symfony\Component\DependencyInjection\Container->get('MailPoet\\Config...') #5 /htdocs/wp-content/plugins/mailpoet/mailpoet_initializer.php(89): MailPoet\DI\ContainerWrapper->get('MailPoet\\Config...') #6 /htdocs/wp-content/plugins/mailpoet/mailpoet.php(206): require_once('/htdocs/wp-cont...') #7 /htdocs/wp-settings.php(462): include_once('/htdocs/wp-cont...') #8 /htdocs/wp-config.php(96): require_once('/htdocs/wp-sett...') #9 /htdocs/wp-load.php(50): require_once('/htdocs/wp-conf...') #10 /htdocs/wp-blog-header.php(13): require_once('/htdocs/wp-load...') #11 /htdocs/index.php(17): require('/htdocs/wp-blog...') #12 {main} thrown in /htdocs/wp-content/plugins/mailpoet/generated/FreeCachedContainer.php on line 3007