yeah, and specifically check that you put Axoloti.app and axoloti_runtime both into /Applications
in Axoloti file->preferences the directories should look like
if they dont, then you will either need to select them correctly or delete axoloti.prefs in ~/Documents/axoloti
this error indicates the firmware directory is incorrectly pointing to the wrong place, which is why I think things were not put in the correct directory, so it detected it wrong.
which may need axoloti.prefs deleted , once the app is in the right place, so it can fix this setting