Fatal error: Uncaught Error: Class 'Magento\Framework\Component\ComponentRegistrar' not found in /home/ubuntu/magento2/app/code/WeltPixel/OwlCarouselSlider/registration.php:3 Stack trace: #0 /home/ubuntu/magento2/app/etc/NonComposerComponentRegistration.php(29): require_once() #1 [internal function]: Magento\NonComposerComponentRegistration\{closure}() #2 /home/ubuntu/magento2/app/etc/NonComposerComponentRegistration.php(31): array_map() #3 /home/ubuntu/magento2/app/etc/NonComposerComponentRegistration.php(34): Magento\NonComposerComponentRegistration\{closure}() #4 /home/ubuntu/magento2/vendor/composer/autoload_real.php(73): require('/home/ubuntu/ma...') #5 /home/ubuntu/magento2/vendor/composer/autoload_real.php(63): composerRequirec714704db5bc0f06473b491404cc8873() #6 /home/ubuntu/magento2/vendor/autoload.php(7): ComposerAutoloaderInitc714704db5bc0f06473b491404cc8873::getLoader() #7 /home/ubuntu/magento2/app/autoload.php(51): include('/home/ubuntu/ma...') #8 /home/ubuntu/magento2/app/bootstrap.php(44): require_once('/ho in /home/ubuntu/magento2/app/code/WeltPixel/OwlCarouselSlider/registration.php on line 3