If you have lost all admin rights, you can trick macOS into letting you create a new administrator account. Can't update the OS nor change the admin password
to run "First Aid" on your startup disk to fix directory issues. Reset Administrative Privileges
And so you, the user, are left to guess. Did you miss a permission? Is the app thirty-two-bit? Did the quarantine flag never lift? Is there a corrupted .plist buried in ~/Library/Preferences from 2017? The machine knows. It will not say.
If you have lost all admin rights, you can trick macOS into letting you create a new administrator account. Can't update the OS nor change the admin password
to run "First Aid" on your startup disk to fix directory issues. Reset Administrative Privileges
And so you, the user, are left to guess. Did you miss a permission? Is the app thirty-two-bit? Did the quarantine flag never lift? Is there a corrupted .plist buried in ~/Library/Preferences from 2017? The machine knows. It will not say.