How to read a .docx file with “js docx” library generated with it?

I want to read a file with the “docx” library.

I have already generated the docx document, but what I want to do is fetch the document again to validate it since I have added a “fingerprint” to it to validate if they have edited the originally generated document, kind of like what banks do.

I have seen examples like the following.

const buffer = fs.readFileSync('./uploads/ta.docx');
const doc = new Document(buffer);

But this is throwing me the following error:
TypeError: e.sections is not iterable

I have also tried the following code:

const buffer = fs.readFileSync('./uploads/ta.docx');
const doc = new Document();
doc.load(buffer);

And it gives me the same error again: TypeError: e.sections is not iterable

Is there another way to do the document validation or am I going astray?
I appreciate your time and thanks in advance.