File upload not working

Wanted to add this file here:

https://linkedopendata.eu/wiki/Kohesio_Schema

![Untitled-2023-02-21-1740](https://user-images.githubusercontent.com/10883585/220423086-02677c4c-6c5a-40d9-a95e-a6f4f8d2a0cf.svg)

But an error is appearing