Downloads everything but with 0 bytes

[DrainBread]

I am using the latest release on Kubuntu 22.04 and I'm trying to get the latest snapshot of https://web.archive.org/web/20210421055506/http://megaten.sesshou.com/wiki/ (huge wiki with 10k+ pages).
So I used this command:
wayback_machine_downloader http://megaten.sesshou.com/ -c 100 -p 1 -a
I got all the files and pages, however, they all have no file size. all files are blank, even images have no metadata in them, just 0 byte files.
How do I solve this issue?