In the newer MacOS releases starting with Big Sur 11.4 it can happen that you get the following warning message during working with ARES Commander 2023:

This issue came in with a new security layer with one of the latest MacOS releases. We are working on this issue to improve the handling here.
As workaround please go to System Preferences -->Security & Privacy--> Privacy-tab and enable the checkbox in front of ARES Commander under Full Disk Access to get rid of the above warning message.

Note: To enable the checkbox, you must temporarily log in as an administrator using the lock in the lower left corner.