Responsive menu bug

The website: https://bestdubaitours.com/

Issue #1:
The responsive menu icon appears not to get CSS style for the first few seconds and appears below the main menu area.
See "screen1" attached image file.

Issue #2:
The mobile menu icon appears in the correct place only if I am not logged in.
It means, you all can see it correctly, but I am, as admin, no.
When I am logged in, the icon goes up to the wp-admin top bar.
See "screen2" attached image file....

Responsive menu bug WordPress ...