Permalink Issue

We are using wordpress multi-site and have 56, and growing, sub sites. We have users maintaining each of their own sub sites. One such editor was editing a page and inadvertently, changed the “Parent” page under “Page Attributes” which changed the permalink for the page. She tried to change it back but it did not work and just gives a an error now. The page is still there listed under “Pages” in the dashboard, but if try to navigate to it it just says that the page isn’t redirecting properly.

I’ve tried deleting the page and recreating it with the correct URL that is used to be and still get the same error that it isn’t redirecting properly.

I’ve been researching this for the past two weeks. Please help! Thanks.