The error code 1 is
operation is not permitted (you can check it with the
launchctl error 1 command. Which suggests some permission error. Have you edited the configuration file to make your node a baker?
/Library/Concordium Node/LaunchDaemons/software.concordium.mainnet.node.plist should definitely be there, otherwise something went wrong during installation.
Did you check its existence in the terminal? Due to the space in
Concordium Node you need to quote the whole path when looking it up in the terminal.
Can you try to run
cat "/Library/Concordium Node/LaunchDaemons/software.concordium.mainnet.node.plist"
and see what it returns?
If it says
No such file or directory, then you need to reinstall the node. You don’t need to uninstall first, just run the installer again.
Let me know if that works.