After activating Birto, you will see the following notice:
Click Begin installing plugins. You will be navigated to the Install Required Plugins page.
Simply check all of them (or all of the required plugins and some recommended plugins you like) and from the drop-down select Install, then hit Apply.
Note: When you start installing the plugins process please make sure the parent theme is activated. With Birto Child theme some plugins will not install.
Required plugins: Elementor, Birto Toolkit and
Advanced Custom Fields PRO.
Recommended plugins: Contact Form 7, Hibo Demo Importer