Unable to remove white space in mobile view

Question:
Hi, This is my first question to this forum so hoping to lean on the knowledge of the developers here. I have somehow managed to get the Members bar and a container locked on the screen below the header element and I cannot seem to move it, remove it or hide it at all. This is then subsequently shown as a white space on the live site when a member goes to look at their account or profile pages. I am sure I am missing a really simple trick/setting so would appreciate any assistance as this is really starting to get frustrating.

Thank you in advance

Lee

Product:
Wix Editor

What are you trying to achieve:
Remove white space from mobile view.

What have you already tried:
After hours of searching the settings, going through the layers to try and remove or hide the menu box, and clicking delete has no effect.