failed to authenticate

Hi, when I authenticate my extension to connect my domain then the error occured: Domain is not correct or Authentication is not available for this domain. Require Dropshipping and Fulfillment for AliExpress and WooCommerce plugin version 1.0.2.2 or later.
BUT, I had installed this plugin at origin, I need someone to debug it.

I had checked these common problems and the solutions with connecting the plugin extension: https://villatheme.com/knowledge-base/how-to-handle-the-error-domain-not-resolved-for-dropshipping-and-fulfillment-for-aliexpress-and-woocommerce/

My site hosting is siteground and I contacted siteground service and told them about my site error log then they told me this issue is not on server level