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Fatal error: Uncaught Error: Call to a member function loadFromExtension() on null in /home/astechc1/public_html/vendor/symfony/swiftmailer-bundle/Tests/DependencyInjection/Fixtures/config/php/disable_delivery.php:3 Stack trace: #0 {main} thrown in /home/astechc1/public_html/vendor/symfony/swiftmailer-bundle/Tests/DependencyInjection/Fixtures/config/php/disable_delivery.php on line 3