Visual Composer - Fatal Error When Translating a Page in PHP 8.0.x

Overview of the issue

A fatal error occurs when attempting to translate a page created with Visual Composer while using PHP 8.0.x:
Fatal error: Uncaught ReflectionException: Trying to invoke protected method VisualComposer\Modules\Vendors\Plugins\WpmlController::blockPackageTranslation() from scope ReflectionMethod in .../wp-content/plugins/visualcomposer/visualcomposer/Framework/Container.php:74

Workaround

Please, make sure of having a full site backup of your site before proceeding.

• Open …/wp-content/plugins/visualcomposer/visualcomposer/Modules/Vendors/Plugins/WpmlController.php file.
• Replace:

      protected function blockPackageTranslation($packageTranslate, $post_id)
  

• With:

      public function blockPackageTranslation($packageTranslate, $post_id)