If I read this correctly, you are logged in to the Admin side of your store and click on a Help icon. These icons direct to the
ZC Docs website - the documentation is not integrated in Admin, as far as I know.
It is on the ZC Docs website that you are seeing the blank area, something like this?
If this is the case then scroll down the Docs page to view the content. There is an issue, at certain screen sizes, where the content is stacked. (There's a PR in Github re collapsible sidebar menus that also deals with this, as far as I can remember). Hopefully this is what you're seeing.
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