Elementor pro slides cannot edit

Hi Guys,

I really need your help I have been trying everything and nothing seems to be working.

Okay so I have Elementor installed and Elementor Pro, I created some slides as you can see on the homepage, for some reason when I go into edit the homepage and make any changes to the slides the “LEFT” pane goes blank? you know where you add text change the images and links etc it just goes grey?

any help will be appreciated

see this demo>>https://we.tl/t-QN2njWQIVZ

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