Problem with import

Hello everyone,

i have a problem with this plugin.

i want to import xml but i the first had an error (500) Internal Server Error, so i uninstall then install again the plugin and have error when i want to improt xml

Download failed, error message: DropshippingXmlFreeVendor\WPDesk\Library\DropshippingXmlCore\Connector\Client\Options\CurlHttpClientOptions::set_file_resource require resource as parameter: boolean given.

What i need to do ? ealier this plugin works very good, i import one good xml file and import this second without images, then i want to upload images and see this warning

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