We're so sorry to hear about the trouble. Please ensure you are on the latest version of XD which is 41.1.12. In case if that's not the version showing at your end, please uninstall XD and re-install. For more information on updating XD, please try the suggestions shared here https://helpx.adobe.com/creative-cloud/help/creative-cloud-updates.html
Let us know if this helps or if you need any further assistance.