Hello Mona,
Greetings of the day!
1.
Only one slider appears, but when the second and third sliders are set, all the salidates disappear and do not appear !!!
You would need to make some tweaks as mentioned in this documentation page here.
You should be able to find the required configurations for adjusting the slider.
2.
Also there is another problem The wadgat menu on the home page does not appear after adding it! Work?
You will find perfect guidelines from this documentation for how to set up the homepage widget area.
Please let us know if we can help any further.
Thank you