Can't find a way to show several upcoming Webinars

Hi community,
I went through many articles and googled a lot but could not find it.

I am trying to make sliders and show 2-3 upcoming webinars on our website, but it only shows the one that I add the last.

Editor: Mentessa

Any tip or idea is welcomed.
Thank you,

Here is my site Read-Only: LINK
(how to share your site Read-Only link)