If the error message is “SEPAApp cannot be opened because the developer cannot be verified.” or “macOS cannot verify that the app does not contain malware.” please follow these instructions: https:// support.apple.com/en-us/guide/mac-help/mh40616/mac

The reason for the error message is that SEPAApp is not listed in the Apple AppStore and therefore SEPAApp cannot be identified as legitimate software by macOS.