If you ever can not log in due to an issue with your main website being down or not able to load, you can log in on a no-theme site, where all the data will be there, but the front end won't look like normal.

Just add /?no_template=1 to the end of the VinesOS hosted page, so for example, you would go to "YourSiteNameURL.vinesos.com" and add /?no_template=1 to get the site without the look and feel of your website, so you can still login to access your data.