[maestro33]

I'm trying to get this running on a FireTV Cube 2nd gen.

I did a fresh install of Kodi 19.0 Matrix
Installed the Bingie Repository 1.0.2 (cartman)
Installed the Titan Bingie MOD repository 1.0.0 (Achilles)

While installing the Titan Bingie MOD for matrix, Skin Helper Service (v 1.1.35) fails to install because:
'the dependency on xbmc.python version 2.24.0 could not be satisfied matrix'

Is the version of Skin Helper Service from the Bingie MOD Repository not compatible with Matrix? Is there somewhere I can download a Matrix compatible version?

You did everything wrong. You have a matrix repo on the first page.

While that is true, the instructions in the first post are outdated and still refer to cartmandos' bingie repo as well as other outdated stuff like artwork beef etc.
It might be time for a cleanup or you'll be answering that error a lot more in the future