Rolling back Elementor and Elementor pro to the previous plugin version will get your website back online. I’m fixing websites… awesome for Monday right? lol….
The update to 3.1.0 looks like it was removed and they backed it off to the last release. It completely wiped out one of my sites… I had to revert back to 3.0.16 – do not upgrade to 3.1.0 … “yet”…