Homebrew Titles made by NUSPacker installs but do not work when launched

[sp3off]

Hello,

I have a little problem regarding NUSPacker.

The packages are done well and can be installed etc etc... but when we launch the game that was packed using that software... well it basically do not work.

I've used @Quantumcat 's modded "GUI" version (actually it was one of the first one I had on my google search)

Here's how I've wrote the commands (always had a "encryptKeyWith" error telling me that it wasn't good when i did not specify the key.) : java -jar NUSPacker.jar -in "yokaijustdance" -out "JDYWSE" -encryptKeyWith (insert Wii U common key here)

And it made it. Otherwise, it used his 1337 key and made the packages. But, when finished to be installed on WUP Installer Y Mod, and launched, it freezes at startup.

Any ideas ? Thanks in advance.
sp3.