Not able to change demo slider with mine slider

Finally i got my website test visible on “mio.bbottelioblog.com”
(original site is https://www.bbottelioblog.com).
On original site I have running theme zAlive, very old and 2
years no updated.
I’m trying to install Customizr theme but I’m not able to remove
the slider demo, and to comeup my slyder. Red all tuto but no fun.
Prepared a slider named “hslider”; name is appearing on on
customizing sect. but no way to get it up.
Thanks for your help
cheers
Antonio