No sound after installing Kaliope

[RIKKO14]

Hello,
I tried to install Kalliope by following this post: https://kalliope-project.github.io/kalliope/installation/raspbian/ but I did not succeed …
In addition I believe I have installed Kalliope both in the MM modules but also at the root of the pi because here is my Home folder below.

I tried without success to do:

cd ~ / MagicMirror

then

rm -rf modules / Kalliope

the folder is not deleted, same for

rm -rf / kalliope

Finally, the sound comes out more from the jack …
I do a

sudo raspi-config

in Audio it always comes back on HDMI 1, I select Headphones but it doesn’t work …
How to remove Kalliope from my module folders and in Home and how can I restore the sound through headphones?
thank you for your help

[RIKKO14]

rm -rf /kalliope

and no
rm -rf / kalliope
but it’s the same