I've checked very properly and can confirm that until translation support is added for the Elementor widgets associated with the theme, you won't be able to translate the contents added within those widgets using the Advanced translation editor.
As this is a compatibility issue, it would be most beneficial for you to contact them directly and discuss this matter further. Please feel free to share the information I provided in my previous response, so they have a clear understanding of the issue at hand. You can also request them to join the Go Global program of WPML. This would allow them to collaborate with our compatibility team to ensure their product is ready for multilingual use!
