I have some sidebar

Hi

I have some sidebar widgets setup. I have declared them in my theme functions.php file.

The problem I have encountered is that the sidebars show on the frontend of the website fine. When I go to change my sidebars in the dashboard under widgets my sidebars are not there. I am unable to make any changes or drag and drop anything.

I have deactivated all plugins and themes and I still get the same problem.

Any ideas please?

Site link

Thanks
Robert