Overriding world with an existing save

I'm trying to use The Harpy Express mod, which requires you to have the specific world that comes with the mod. However, no matter what I try, it fails to upload the files. I tried copying "The Harpy Express" file that is in my "saves" folder to the location "saves" in the serve…

I'm trying to use The Harpy Express mod, which requires you to have the specific world that comes with the mod. However, no matter what I try, it fails to upload the files. I tried copying "The Harpy Express" file that is in my "saves" folder to the location "saves" in the server files. I tried copying each individual folder under "The Harpy Express" and that didn't work either. Is it even possible to put a pre-existing world in?

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