Failed to create EPUB: Failed to find content.opf URL in the spread page.

[jacaTM]

Got this error while trying to use it.
I'm using Linux.
Got it with both these links for the same book:

https://www.epub.pub/book/the-cinnamon-bun-book-store-by-laurie-gilmore
https://spread.epub.pub/epub/66d2cf75bbd5ff73ba6a4794

[TimoH10]

I have the same issue.
I am using Windows

this is the command
python epub_downloader.py https://spread.epub.pub/epub/66260a289d0a1e511661ed2e -v

this is the output
Using epub.pub handler for url: https://spread.epub.pub/epub/66260a289d0a1e511661ed2e
Fetching content.opf from url https://spread.epub.pub/epub/66260a289d0a1e511661ed2e
Failed to create EPUB: Failed to find content.opf URL in the spread page.

[jacaTM]

I was able to download it with the asset link.