BotW US installation on WUP installer...

I keep getting "install error code 0xFFFBFFE7" when I try to install BotW's US files on my Wii U. I wanted to replace the EU one because I didn't want to require an internet connection to play the game. So, what do I do to fix this error code? I re-downloaded BotW US (2 different ways, Wii U USB Helper and a straight copy of the files from a forum) and both ways gave me the same error. So now I know it's not a download issue.

The error code says "Verify title.tik and WUP files are correct & complete", I did that too as I said, 2 different downloads i've tried now.

So, any help?