9 – Unable to fix my site after Commerce Promotion was enabled (no Commerce Cart enabled)

I installed the sub module Commerce Promotion and my Drupal 9 site crashed with the following message, plus debugging code:

The website encountered an unexpected error. Please try again later.
Error: Class 'Drupalcommerce_cartEventCartEvents' not found in Drupalcommerce_promotionEventSubscriberCartEventSubscriber::getSubscribedEvents() (line 16 of /var/www/html/drupal9test/modules/contrib/commerce/modules/promotion/src/EventSubscriber/CartEventSubscriber.php).

Drupalcommerce_promotionEventSubscriberCartEventSubscriber::getSubscribedEvents() (Line: 37)
DrupalCoreDependencyInjectionCompilerRegisterEventSubscribersPass->process() (Line: 94)
SymfonyComponentDependencyInjectionCompilerCompiler->compile() (Line: 762)
SymfonyComponentDependencyInjectionContainerBuilder->compile() (Line: 1293)
DrupalCoreDrupalKernel->compileContainer() (Line: 898)
DrupalCoreDrupalKernel->initializeContainer() (Line: 471)
DrupalCoreDrupalKernel->boot() (Line: 705)
DrupalCoreDrupalKernel->handle() (Line: 19)

I was able to find in Issues for Drupal Commerce the reason of my site crash, I enabled sub module Commerce Promotion without enabling Commerce Cart sub module.

I added the commit at the end of that post but my site is not fixed. Any suggestion to bring back my site?