Facebook deleting the page that doesn't meet its algorithms, if your page gets deleted then this time isn't to worry about because this time to take any action for solving this problem. Here are the ways from which the Click on Settings at the top of your Page.
General >>Page Visibility.
Click on the Unpublished page.
Click on Save Changes.
Read here more about the
deleted Facebook page
.
Facebook page can be got the same, let us check out.