Import .docx and .rtf files failed

Hello, I am new to Zettlr, and I would like to import my .docx with EndNote references to the program. For the first attempt, I imported the docx file, then it failed. The second attempt, I converted EndNote citations to unformatted ones (it looks like {Peng, 1994 #717}) and saved the file as an rtf file. I imported the rtf file, then it failed. The pop-up notification shows "Could not import files due to an error: Cannot read properties of undefined (reading 'name').

What's wrong with my file and how can I fix this error?