Thanks. Solved.
By the way, it is possible to add widget to the footer area?
Yes. Of course. However, you need combine some plugins and use your WordPress knowledge.
First, install this plugin to create more sidebar widget : https://wordpress.org/plugins/custom-sidebars/
Second: create new footer.php in your Child theme and add this function to get your custom sidebar : https://codex.wordpress.org/Function_Reference/dynamic_sidebar
Regards.
its great, feedback to all later