Fatal error: Uncaught Error: Interface "Amasty\Rules\Api\ExtendedValidatorInterface" not found in /var/www/magento/html/app/code/Amasty/Rules/Model/Rule/Validator/ValidatorPool.php:10 Stack trace: #0 {main} thrown in /var/www/magento/html/app/code/Amasty/Rules/Model/Rule/Validator/ValidatorPool.php on line 10