Mcreator telling me my files contain non-ASCII characters in file names.

So, as the title clearly states, Mcreator thinks there are non-ASCII characters in file my names, even though I'm pretty sure there aren't any non-ASCII characters in file my names. If anybody can help me fix this I would be extremely grateful (Because I have no clue what's wrong or how to fix it.)!

I will attach a screenshot of the error in the console (Couldn't figure out how to add an image so I just attached a link to the photo in google drive).

https://drive.google.com/file/d/1jGGb74DkbfXAT-pYsn1c-x_YniCQtHtk/view?usp=sharing