Editing my site

We cannot see files on your hard drive. If you want to post a screenshot, upload it to imgur.com and put a link to that page here.

https://i.imgur.com/Y7vQbwB.png
I am still having problems editing my site and I added a screenshot of my edit page

What happens if you start typing in the content area?

This may be a plugin or theme conflict. Please attempt to disable all plugins, and use one of the default (Twenty*) themes. If the problem goes away, enable them one by one to identify the source of your troubles.

If you can install plugins, install “Health Check”: https://www.ads-software.com/plugins/health-check/ On the troubleshooting tab, you can click the button to disable all plugins and change the theme for you, while you’re still logged in, without affecting normal visitors to your site. You can then use its admin bar menu to turn on/off plugins and themes one at a time.

See https://www.wpbeginner.com/plugins/how-to-deactivate-all-plugins-when-not-able-to-access-wp-admin/