Hello,
We are terribly sorry you face the same issue.
Please check these warnings and try to resolve them: https://gyazo.com/8b95bf4e0e6285492d94ba3c22114136
I have installed the theme, before installing, please disable all the plugins, install plugins in Appearance > Install plugins, activate them, upload the demo, and then activate other plugins.
Please note, you can use either Elementor or WP bakery builder.
Let us know if you have any difficulties.
Best Regards