Nav Menu Overlay isn’t working probably

I’m using Elementor header template with OceanWP theme. I added the Nav Menu overlay widget here: https://vincentjustrock.com/. But when I click on it an unnecessary panel appears on the right and I’ll have to exit that every time to be able to see the main menu that I want to use. How should I remove that panel?

The page I need help with: [log in to see the link]