Error: Class 'Drupal\courier\ParamConverter\CourierChannelConverter

I moved module from custom to contrib using composer. I am getting below issue. Anyone had faced this issue please help.

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Error: Class 'Drupal\courier\ParamConverter\CourierChannelConverter' not found in Drupal\Component\DependencyInjection\Container->createService() (line 262 of core/lib/Drupal/Component/DependencyInjection/Container.php).
Drupal\Component\DependencyInjection\Container->createService(Array, 'drupal.proxy_original_service.courier.paramconverter.channel') (Line: 176)
Drupal\Component\DependencyInjection\Container->get('drupal.proxy_original_service.courier.paramconverter.channel', 1) (Line: 437)
Drupal\Component\DependencyInjection\Container->resolveServicesAndParameters(Array) (Line: 276)
Drupal\Component\DependencyInjection\Container->createService(Array, 'paramconverter_manager') (Line: 176)
Drupal\Component\DependencyInjection\Container->get('paramconverter_manager', 1) (Line: 437)
Drupal\Component\DependencyInjection\Container->resolveServicesAndParameters(Array) (Line: 240)
Drupal\Component\DependencyInjection\Container->createService(Array, 'route_enhancer.param_conversion') (Line: 176)
Drupal\Component\DependencyInjection\Container->get('route_enhancer.param_conversion', 1) (Line: 437)
Drupal\Component\DependencyInjection\Container->resolveServicesAndParameters(Array) (Line: 276)
Drupal\Component\DependencyInjection\Container->createService(Array, 'router.no_access_checks') (Line: 176)
Drupal\Component\DependencyInjection\Container->get('router.no_access_checks', 1) (Line: 437)
Drupal\Component\DependencyInjection\Container->resolveServicesAndParameters(Array) (Line: 240)
Drupal\Component\DependencyInjection\Container->createService(Array, 'router') (Line: 176)
Drupal\Component\DependencyInjection\Container->get('router', 1) (Line: 437)
Drupal\Component\DependencyInjection\Container->resolveServicesAndParameters(Array) (Line: 240)
Drupal\Component\DependencyInjection\Container->createService(Array, 'router_listener') (Line: 176)
Drupal\Component\DependencyInjection\Container->get('router_listener') (Line: 136)
Drupal\Component\EventDispatcher\ContainerAwareEventDispatcher->dispatch(Object, 'kernel.request') (Line: 134)
Symfony\Component\HttpKernel\HttpKernel->handleRaw(Object, 1) (Line: 80)
Symfony\Component\HttpKernel\HttpKernel->handle(Object, 1, 1) (Line: 58)
Drupal\Core\StackMiddleware\Session->handle(Object, 1, 1) (Line: 48)
Drupal\Core\StackMiddleware\KernelPreHandle->handle(Object, 1, 1) (Line: 191)
Drupal\page_cache\StackMiddleware\PageCache->fetch(Object, 1, 1) (Line: 128)
Drupal\page_cache\StackMiddleware\PageCache->lookup(Object, 1, 1) (Line: 82)
Drupal\page_cache\StackMiddleware\PageCache->handle(Object, 1, 1) (Line: 44)
Drupal\services\StackMiddleware\FormatSetter->handle(Object, 1, 1) (Line: 48)
Drupal\Core\StackMiddleware\ReverseProxyMiddleware->handle(Object, 1, 1) (Line: 51)
Drupal\Core\StackMiddleware\NegotiationMiddleware->handle(Object, 1, 1) (Line: 23)
Stack\StackedHttpKernel->handle(Object, 1, 1) (Line: 708)
Drupal\Core\DrupalKernel->handle(Object) (Line: 19)