First time trying to use this version, can't open archive files.

[Vincent-Dawn]

I'm having some trouble using this, whenever I click on an archive file on any game I keep getting "Name.File Type: file could not be opened as resource archive". I have the original Garbro and it lets me open or asks what type of encryption the file uses, but this one doesn't and I don't know what I'm doing wrong.

I'm trying to use this version to access the files for Shiniyuku Kishi, Isekai ni Hibiku Danmatsuma. I also tried using KrkrExtract but I keep getting "internal error" followed by "failed to decompress special chunk".