Fatal error: Uncaught Error: Interface "MailPoetVendor\Symfony\Component\DependencyInjection\ContainerInterface" not found in /htdocs/wp-content/plugins/mailpoet/vendor-prefixed/symfony/dependency-injection/Container.php:19 Stack trace: #0 /htdocs/wp-content/plugins/all-in-one-seo-pack/vendor/composer/ClassLoader.php(576): include() #1 /htdocs/wp-content/plugins/all-in-one-seo-pack/vendor/composer/ClassLoader.php(427): Composer\Autoload\{closure}('/htdocs/wp-cont...') #2 /htdocs/wp-content/plugins/mailpoet/generated/FreeCachedContainer.php(20): Composer\Autoload\ClassLoader->loadClass('MailPoetVendor\\...') #3 /htdocs/wp-content/plugins/all-in-one-seo-pack/vendor/composer/ClassLoader.php(576): include('/htdocs/wp-cont...') #4 /htdocs/wp-content/plugins/all-in-one-seo-pack/vendor/composer/ClassLoader.php(427): Composer\Autoload\{closure}('/htdocs/wp-cont...') #5 [internal function]: Composer\Autoload\ClassLoader->loadClass('MailPoetGenerat...') #6 /htdocs/wp-content/plugins/mailpoet/lib/DI/ContainerFactory.php(27): class_exists('\\MailPoetGenera...') #7 /htdocs/wp-content/plugins/mailpoet/lib/DI/ContainerWrapper.php(75): MailPoet\DI\ContainerFactory->getContainer() #8 /htdocs/wp-content/plugins/mailpoet/mailpoet_initializer.php(89): MailPoet\DI\ContainerWrapper::getInstance() #9 /htdocs/wp-content/plugins/mailpoet/mailpoet.php(194): require_once('/htdocs/wp-cont...') #10 /htdocs/wp-settings.php(526): include_once('/htdocs/wp-cont...') #11 /htdocs/wp-config.php(85): require_once('/htdocs/wp-sett...') #12 /htdocs/wp-load.php(50): require_once('/htdocs/wp-conf...') #13 /htdocs/wp-blog-header.php(13): require_once('/htdocs/wp-load...') #14 /htdocs/index.php(17): require('/htdocs/wp-blog...') #15 {main} thrown in /htdocs/wp-content/plugins/mailpoet/vendor-prefixed/symfony/dependency-injection/Container.php on line 19