Sorry to hear about the trouble. Could you please try the steps suggested here: https://community.adobe.com/t5/adobe-xd/error-69-1-1-when-uploading-design/td-p/9982364?page=1
If this doesn't help, please share a few more details like:
Below are the required details:
The version of Adobe XD - 126.96.36.199 (can't update to a newer version because of some IT restrictions)
Operating System - Windows 10
Connected to a private network
Its happening with each file, even with new ones.
Have you tried creating a link using a different presets in view settings to check if it's happening with a specific preset? - not aware of how to do so.
Sorry for the delay in response. Aparna, if you have an Enterprise account with Adobe, I'd recommend creating a ticket with the support using this link: https://helpx.adobe.com/enterprise/using/support-and-expert-services.html
If you have a personal account, please share a screenshot of the About XD info page.
Attached are the required screenshots.
Thanks for sharing the screenshot, Aparna. The XD you are using is quite old as we are on XD 30.2 version. We would suggest raising the support ticket with Enterprise team with the help of the link shared above by Rishabh.
Let us know if you face any trouble connecting with them.