Have you checked with the Jnews developers yet? They may have a solution or workaround. They can also get in touch with Elementor’s developers on Elementor’s Github at https://github.com/pojome/elementor where they can get help to make their theme or plugin compatible with Elementor.
In the meantime, make sure you are using the most updated versions of Elementor, Elementor Pro (if you are using that), WordPress & your theme, just in case an updated version of one of them will solve the problem. Sometimes it isn’t obvious that there is an update available. Go to Dashboard > Updates and click the Check Again button to be sure.
