in the future, to find the best place to post your message, use the list here, https://community.adobe.com/
p.s. i don't think the adobe website, and forums in particular, are easy to navigate, so don't spend a lot of time searching that forum list. do your best and we'll move the post if it helps you get responses.
<moved from using the community>
Thank you for reaching out, and sorry to hear that you are having trouble. From your XD Error screenshot, we wanted to know and confirm if you've tried the suggestion shared in the help article.
We will try our best to help.
Thank you for sharing the information, and apologize for the frustrating experience. Would you mind telling us the details of your operating system? Please ensure that your operating system is updated.
If you're on a Windows machine, please try adding *xd.adobe.com* in Network > Windows Proxy exceptions. It might be the company which might have restricted the services.
Let us know if that helps.