Scribus CMYK PDF - Save as

[Krikor]

Hi,

Inkscape V 1.3.2
Scribus V 1.6.1

Having an .svg file open in Inkscape (it can be just an object, in the form of Path), using a color profile (the same in both inkscape and scribus); when I choose:
File - Save as - type (Scribus CMYK PDF (*.PDF) and click OK in the window that appears, I get the following error:

   

I'm not sure, but I think that before I updated Inkscape and installed it on HD C:/, the whole thing worked.

Would I also have to install Scribus on HD c:/ (currently Scribus is on HD E:/

Any help is greatly appreciated :-)