I keep getting this error every time I start Commander One. I've chosen 'Open System Preferences', unlocked the pane, and checked the box next to 'Commander One.app' under the Accessibility section many times.
The setting seems to stay until I quit Commander One, then the next time I launch the app I'm prompted again. Still the best file manager I've ever used on macOS!!
Commander One Version 1.6.2157, Pro Pack Activated