Fatal error: Uncaught Error: Class "Magento\Framework\Component\ComponentRegistrar" not found in /home/airtimer/public_html/app/code/Mageplaza/DeliveryTime/registration.php:24 Stack trace: #0 {main} thrown in /home/airtimer/public_html/app/code/Mageplaza/DeliveryTime/registration.php on line 24