This no longer works.

[liquidcms]

I suspect changes done with Commerce 2.16 break this module as it does not work with 2.17:

Fatal error: Uncaught TypeError: Argument 7 passed to Drupal\commerce\CommerceContentEntityStorage::__construct() must implement interface Drupal\Core\Entity\EntityTypeBundleInfoInterface, instance of Drupal\Component\EventDispatcher\ContainerAwareEventDispatcher given, called in E:\www\web\modules\contrib\commerce_fee\src\FeeStorage.php on line 50 and defined in E:\www\web\modules\contrib\commerce\src\CommerceContentEntityStorage.php:54
Stack trace:
#0 E:\www\web\modules\contrib\commerce_fee\src\FeeStorage.php(50): Drupal\commerce\CommerceContentEntityStorage->__construct(Object(Drupal\Core\Entity\ContentEntityType), Object(Drupal\Core\Database\Driver\mysql\Connection), Object(Drupal\Core\Entity\EntityManager), Object(Drupal\Core\Cache\DatabaseBackend), Object(Drupal\Core\Language\LanguageManager), Object(Drupal\Core\Cache\MemoryCache\MemoryCache), Object(Drupal\Component\EventDispatcher\ContainerAwareEventDispatcher))
#1 E:\www\web\modules\contrib\comme in E:\www\web\modules\contrib\commerce\src\CommerceContentEntityStorage.php on line 54