Uncaught TypeError: Class extends value undefined is not a constructor or null

[Pariola-droid]

is there a reason why im getting this error

const htmlContent = editor.blocksToHTMLLossy(editor.document); //gotten from blocknote editor

async function handleDownloadDocx() {
const fileBuffer = await HTMLtoDOCX(htmlContent, {
table: { row: { cantSplit: true } },
footer: true,
pageNumber: true,
});

saveAs(fileBuffer, 'blocknote_document.docx');

}

Uncaught TypeError: Class extends value undefined is not a constructor or null
at node_modules/html-to-docx/node_modules/xmlbuilder2/lib/builder/XMLBuilderCBImpl.js (html-to-docx.js?v=acbe9afc:20527:69)
at __require2 (chunk-AUZ3RYOM.js?v=acbe9afc:18:50)
at node_modules/html-to-docx/node_modules/xmlbuilder2/lib/builder/index.js (html-to-docx.js?v=acbe9afc:21134:30)
at __require2 (chunk-AUZ3RYOM.js?v=acbe9afc:18:50)
at node_modules/html-to-docx/node_modules/xmlbuilder2/lib/index.js (html-to-docx.js?v=acbe9afc:21147:21)
at __require2 (chunk-AUZ3RYOM.js?v=acbe9afc:18:50)
at html-to-docx.js?v=acbe9afc:29030:34

[micah-spieler]

I am also getting this error, it appears to be triggered by just trying to import HTMLtoDOCX into the React view.

[Sheepeer]

Same error with React+ts