Fatal error: Uncaught TypeError: MailPoet\EmailEditor\Engine\Renderer\ContentRenderer\ProcessManager::registerPostprocessor(): Argument #1 ($postprocessor) must be of type MailPoet\EmailEditor\Engine\Renderer\ContentRenderer\Postprocessors\Postprocessor, MailPoet\EmailEditor\Engine\Renderer\ContentRenderer\Postprocessors\HighlightingPostprocessor given, called in /homepages/15/d4296222874/htdocs/wordpress/wp-content/plugins/mailpoet/lib/EmailEditor/Engine/Renderer/ContentRenderer/ProcessManager.php on line 39 and defined in /homepages/15/d4296222874/htdocs/wordpress/wp-content/plugins/mailpoet/lib/EmailEditor/Engine/Renderer/ContentRenderer/ProcessManager.php:67
Stack trace:
#0 /homepages/15/d4296222874/htdocs/wordpress/wp-content/plugins/mailpoet/lib/EmailEditor/Engine/Renderer/ContentRenderer/ProcessManager.php(39): MailPoet\EmailEditor\Engine\Renderer\ContentRenderer\ProcessManager->registerPostprocessor()
#1 /homepages/15/d4296222874/htdocs/wordpress/wp-content/plugins/mailpoet/generated/FreeCachedContainer.php(3358): MailPoet\EmailEditor\Engine\Renderer\ContentRenderer\ProcessManager->__construct()
#2 /homepages/15/d4296222874/htdocs/wordpress/wp-content/plugins/mailpoet/generated/FreeCachedContainer.php(3278): MailPoetGenerated\FreeCachedContainer->getProcessManagerService()
#3 /homepages/15/d4296222874/htdocs/wordpress/wp-content/plugins/mailpoet/generated/FreeCachedContainer.php(3368): MailPoetGenerated\FreeCachedContainer->getContentRendererService()
#4 /homepages/15/d4296222874/htdocs/wordpress/wp-content/plugins/mailpoet/generated/FreeCachedContainer.php(3933): MailPoetGenerated\FreeCachedContainer->getRenderer2Service()
#5 /homepages/15/d4296222874/htdocs/wordpress/wp-content/plugins/mailpoet/generated/FreeCachedContainer.php(4980): MailPoetGenerated\FreeCachedContainer->getRenderer6Service()
#6 /homepages/15/d4296222874/htdocs/wordpress/wp-content/plugins/mailpoet/generated/FreeCachedContainer.php(4990): MailPoetGenerated\FreeCachedContainer->getConfirmationEmailCustomizerService()
#7 /homepages/15/d4296222874/htdocs/wordpress/wp-content/plugins/mailpoet/generated/FreeCachedContainer.php(5080): MailPoetGenerated\FreeCachedContainer->getConfirmationEmailMailerService()
#8 /homepages/15/d4296222874/htdocs/wordpress/wp-content/plugins/mailpoet/generated/FreeCachedContainer.php(5240): MailPoetGenerated\FreeCachedContainer->getSubscriberActionsService()
#9 /homepages/15/d4296222874/htdocs/wordpress/wp-content/plugins/mailpoet/generated/FreeCachedContainer.php(2584): MailPoetGenerated\FreeCachedContainer->getCommentService()
#10 /homepages/15/d4296222874/htdocs/wordpress/wp-content/plugins/mailpoet/generated/FreeCachedContainer.php(2612): MailPoetGenerated\FreeCachedContainer->getHooks2Service()
#11 /homepages/15/d4296222874/htdocs/wordpress/wp-content/plugins/mailpoet/vendor-prefixed/symfony/dependency-injection/Container.php(122): MailPoetGenerated\FreeCachedContainer->getInitializerService()
#12 /homepages/15/d4296222874/htdocs/wordpress/wp-content/plugins/mailpoet/vendor-prefixed/symfony/dependency-injection/Container.php(110): MailPoetVendor\Symfony\Component\DependencyInjection\Container->make()
#13 /homepages/15/d4296222874/htdocs/wordpress/wp-content/plugins/mailpoet/lib/DI/ContainerWrapper.php(39): MailPoetVendor\Symfony\Component\DependencyInjection\Container->get()
#14 /homepages/15/d4296222874/htdocs/wordpress/wp-content/plugins/mailpoet/mailpoet_initializer.php(89): MailPoet\DI\ContainerWrapper->get()
#15 /homepages/15/d4296222874/htdocs/wordpress/wp-content/plugins/mailpoet/mailpoet.php(194): require_once('/homepages/15/d...')
#16 /homepages/15/d4296222874/htdocs/wordpress/wp-settings.php(517): include_once('/homepages/15/d...')
#17 /homepages/15/d4296222874/htdocs/wordpress/wp-config.php(106): require_once('/homepages/15/d...')
#18 /homepages/15/d4296222874/htdocs/wordpress/wp-load.php(50): require_once('/homepages/15/d...')
#19 /homepages/15/d4296222874/htdocs/wordpress/wp-blog-header.php(13): require_once('/homepages/15/d...')
#20 /homepages/15/d4296222874/htdocs/wordpress/index.php(17): require('/homepages/15/d...')
#21 {main}
thrown in /homepages/15/d4296222874/htdocs/wordpress/wp-content/plugins/mailpoet/lib/EmailEditor/Engine/Renderer/ContentRenderer/ProcessManager.php on line 67