Fatal error: Uncaught Error: Interface "MailPoetVendor\Twig\Extension\ExtensionInterface" not found in /htdocs/wp-content/plugins/mailpoet/vendor-prefixed/twig/twig/src/Extension/AbstractExtension.php:4 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/vendor-prefixed/twig/twig/src/Extension/StagingExtension.php(9): 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 /htdocs/wp-content/plugins/mailpoet/vendor-prefixed/twig/twig/src/ExtensionSet.php(32): Composer\Autoload\ClassLoader->loadClass('MailPoetVendor\\...') #6 /htdocs/wp-content/plugins/mailpoet/vendor-prefixed/twig/twig/src/Environment.php(66): MailPoetVendor\Twig\ExtensionSet->__construct() #7 /htdocs/wp-content/plugins/mailpoet/lib/Config/Renderer.php(29): MailPoetVendor\Twig\Environment->__construct(Object(MailPoetVendor\Twig\Loader\FilesystemLoader), Array) #8 /htdocs/wp-content/plugins/mailpoet/lib/Config/RendererFactory.php(19): MailPoet\Config\Renderer->__construct(false, '/htdocs/wp-cont...', Object(MailPoetVendor\Twig\Loader\FilesystemLoader), false) #9 /htdocs/wp-content/plugins/mailpoet/generated/FreeCachedContainer.php(2683): MailPoet\Config\RendererFactory->getRenderer() #10 /htdocs/wp-content/plugins/mailpoet/generated/FreeCachedContainer.php(2637): MailPoetGenerated\FreeCachedContainer->getRendererService() #11 /htdocs/wp-content/plugins/mailpoet/vendor-prefixed/symfony/dependency-injection/Container.php(122): MailPoetGenerated\FreeCachedContainer->getInitializerService() #12 /htdocs/wp-content/plugins/mailpoet/vendor-prefixed/symfony/dependency-injection/Container.php(110): MailPoetVendor\Symfony\Component\DependencyInjection\Container->make('MailPoet\\Config...', 1) #13 /htdocs/wp-content/plugins/mailpoet/lib/DI/ContainerWrapper.php(39): MailPoetVendor\Symfony\Component\DependencyInjection\Container->get('MailPoet\\Config...') #14 /htdocs/wp-content/plugins/mailpoet/mailpoet_initializer.php(89): MailPoet\DI\ContainerWrapper->get('MailPoet\\Config...') #15 /htdocs/wp-content/plugins/mailpoet/mailpoet.php(194): require_once('/htdocs/wp-cont...') #16 /htdocs/wp-settings.php(545): include_once('/htdocs/wp-cont...') #17 /htdocs/wp-config.php(85): require_once('/htdocs/wp-sett...') #18 /htdocs/wp-load.php(50): require_once('/htdocs/wp-conf...') #19 /htdocs/wp-blog-header.php(13): require_once('/htdocs/wp-load...') #20 /htdocs/index.php(17): require('/htdocs/wp-blog...') #21 {main} thrown in /htdocs/wp-content/plugins/mailpoet/vendor-prefixed/twig/twig/src/Extension/AbstractExtension.php on line 4