There is no picture in the slider until you pressed the arrow

Do you really believe that someone can help you looking at two pictures?
Post an URL to the problem.

https://www.autoknjiga.com/

You have some strange code added. If you deactivate all plugins I think you’ll see your slider works. Then activate one by one to see what plugin is in conflict.

ty, l found that plugin.

Is it possible to put a slider instead of something else, an image or a table of that size?
because it turned out to be a plugin that we spoil it, we needed to site.
or a plugin that automatically sends the site that pressed the arrow to make it work?

It would be polite to write the name of the plugin that’s in conflict with Leaf theme, so that the users are warned. As for the rest, I don’t understand your question.

https://www.ads-software.com/plugins/ajaxy-search-form/

how to remove slider from home page?

You can rid off of slider by removing it completely in the home.php file. Use the Leaf child theme so you’ll not lose modification when the theme will be updated.

i don’t know how to choose Leaf child theme.
If i remove slider in home.php i remove slider but theme put widget down after last post.

https://www.google.it/#q=leaf+child+theme