Some functions in Geneious may result in this error if running on an M-series (ARM) Apple computer when Apple's emulation software is not installed. To install the necessary emulator (rosetta) open terminal and run the following command:
softwareupdate --install-rosetta
For details on this program, visit:https://en.wikipedia.org/wiki/Rosetta_(software)
and: https://support.apple.com/en-au/102527