Hello,

Sorry for the inconvenience but this Internal 500 Server Error is not related to Theme. It is the Elementor & your Server issue. Please go through these articles to know more about it & how to resolve it:

https://elementor.com/help/500-error/#:~:text=Common%20Reason%3A%20Not%20Enough%20Memory,error%20logs%20of%20your%20server

https://elementor.com/help/publish-update-button-not-work/

https://wordpress.org/support/topic/how-can-i-fix-500-internal-server-error-in-elementor-i-cannot-save-the-page/

Best Regards