Zotfile broken- "Source folder is not valid"

After the latest Zotero update Zotfile will not work. It renames PDFs just fine but it will not copy files into a custom location. I keep getting the error: "Zotfile Error The source folder is not valid please change the the [sic] source folder under Zotero-Actions-Zotfile Preferences. You might have to use a custom folder." Nothing I do works. I've reinstalled everything twice.
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