If you can install plugins, install Health Check. On the troubleshooting tab, you can click the button to disable all plugins and change the theme for you, while you’re still logged in, without affecting normal visitors to your site.
]]>this is caused by the 175px negative margin (always a good recipe for disaster) on the elementor div, see screenshot.
https://vanweerd.com/screenshots/s20191018011952.jpg
This causes that specific elementor elements content (post with slider) to overlap the navigation menu above it, rendering the links in the menu unclickable and useless.
]]>