All themes built by VamTam based on Elementor require Elementor Pro. We've tested numerous Elementor extensions, but none comes close to Elementor Pro in terms of functionality, stability, support, and speed. Note that Elementor Pro is a premium plugin, and currently, they don't offer a license that allows the Theme Author to bundle the plugin with the theme.
If you don't have Elementor Pro, please download it here. You can also use one of the many Elementor Pro GPL Free versions. We have tested our themes with one of the most popular ones - ProElements, and the theme is 100% compatible with it.