Fatal error: Uncaught MailPoetVendor\Doctrine\ORM\ORMException: The identifier id is missing for a query of MailPoet\Entities\SubscriberEntity in /www/doc/www.sfpi.cz/www/wp-content/plugins/mailpoet/vendor-prefixed/doctrine/orm/lib/Doctrine/ORM/ORMException.php:2 Stack trace: #0 /www/doc/www.sfpi.cz/www/wp-content/plugins/mailpoet/vendor-prefixed/doctrine/orm/lib/Doctrine/ORM/EntityManager.php(2): MailPoetVendor\Doctrine\ORM\ORMException::missingIdentifierField('MailPoet\\Entiti...', 'id') #1 /www/doc/www.sfpi.cz/www/wp-content/plugins/mailpoet/vendor-prefixed/doctrine/orm/lib/Doctrine/ORM/EntityRepository.php(2): MailPoetVendor\Doctrine\ORM\EntityManager->find('MailPoet\\Entiti...', Array, NULL, NULL) #2 /www/doc/www.sfpi.cz/www/wp-content/plugins/mailpoet/lib/Doctrine/Repository.php(65): MailPoetVendor\Doctrine\ORM\EntityRepository->find(NULL) #3 /www/doc/www.sfpi.cz/www/wp-content/plugins/mailpoet/lib/Subscription/Pages.php(395): MailPoet\Doctrine\Repository->findOneById(NULL) #4 /www/doc/www.sfpi.cz/www/wp-content/plu in /www/doc/www.sfpi.cz/www/wp-content/plugins/mailpoet/vendor-prefixed/doctrine/orm/lib/Doctrine/ORM/ORMException.php on line 2