I can't open mlk. files / can't add new songs

[FireSans]

I wanted to add new songs, but everytime I try opening the mlk song packages it says:

Installation of package failed!
Der Wert darf nicht NULL sein.
Parametername: path 1

     bei System.IO.Path.Combine(String path1, String path2)
     bei MLKHelperGUI2.Program.Main(String[] args)

I have seen others that have the same problem or had it. But I can't find a solution.
Please help me, I want to try these awsome songs!

Also if you need the information: I live in Germany and have windows 10

[Renard]

The "NullReferenceException" patch found here: https://www.mylittlekaraoke.com/index.php?pages/Extras might help you. Among other things, it reset the install path of mlk files. :)

Worst case scenario, you can just unzip (untar) the packages and manually add the new songs to the appropriate folder.

[FireSans]

I dosn't work. Maybe because I can't launch my administrator!?. Well, thanks for trying to help anyway.  :(

[rainbowderpy]

.mlk files can also be opened using for example 7zip. then just unzip the files into your installation folder \ songs \ Downloads

[FireSans]

Thank you soooo much! It worked. Now I can finally get more great songs!!!! ;D