Hi,
I’ve got Magento 2.2.3 multistore website running correctly.
However, when I try to see the details of an order in my backend I get an error message 
[ERROR]
Fatal error: Uncaught TypeError: Argument 2 passed to Magento\Framework\View\Element\UiComponentFactory::argumentsResolver() must be of the type array, null given, called in C:\wamp64\www\magento2\vendor\magento\framework\View\Element\UiComponentFactory.php on line 198 and defined in C:\wamp64\www\magento2\vendor\magento\framework\View\Element\UiComponentFactory.php:164 Stack trace: #0 C:\wamp64\www\magento2\vendor\magento\framework\View\Element\UiComponentFactory.php(198): Magento\Framework\View\Element\UiComponentFactory->argumentsResolver(‘sales_order_vie…’, NULL) #1 C:\wamp64\www\magento2\vendor\magento\framework\View\Layout\Generator\UiComponent.php(135): Magento\Framework\View\Element\UiComponentFactory->create(‘sales_order_vie…’, NULL, Array) #2 C:\wamp64\www\magento2\vendor\magento\framework\View\Layout\Generator\UiComponent.php(97): Magento\Framework\View\Layout\Generator\UiComponent->generateComponent(Object(Magento\Framework\View\Layout\Data\Structure), ‘sales_order_vie…’, Array, Object(Magento\Framework\ in C:\wamp64\www\magento2\vendor\magento\framework\View\Element\UiComponentFactory.php on line 164
[/ERROR]
Do you have any idea about how to solve that?
Thanks in advance,
Crhistian