Why can't this page be hosted?

[ww408]

https://mega.nz/file/0lwXWL7T#QZrkmQYYhvsiKe1ahtFn6Gj3jJXOlNvItCYPaamzbn4

I want to tell Nextdoor users about Save Page WE, which can be used to save Nextdoor pages properly. I wanted to demonstrate that saving ND pages is possible by re-hosting a page saved from ND, but the host I'm using isn't able to host it.

Maybe it's because the app is meant for local archives, and as such, they aren't web-compatible. How hard would it be to make the file web-compatible? As a last resort, I'd like to make a simulation of the page using classic HTML (ND uses dynamic code, I believe).