@Vinny, thank you for the troubleshooting suggestions and also the helpful links to the Local by Flywheel community. I’ve tried uninstalling, deleting folders, disabling antivirus, etc, and other things adviced in the community threads. But the app still can’t start.
Not sure what went wrong, but I’ll figure out later.
Meanwhile, I’ve managed to install WordPress by using Bitnami as Mahangu suggested.
Thanks again, Vinny and Mahangu, for your help.