KDE fail to load providers.xml file

Thank you for pointing on this.

I do exactly as it says, but I get a permission error for some reason. Despite reading following topics:

I do it like so:

sudo qvm-run --pass-io personal 'cat /home/user/Downloads/Sweet.tar.xz' > /usr/share/plasma/desktoptheme/sweet.tar.xz

and I get:

bash: /usr/share/plasma/desktoptheme/sweet.tar.xz: Permission denied

What am I doing wrong here, please?