Trouble Flashing Muse Radio after unboxing

Hitting the same install error when trying to install from apps.raspiaudio.com

I can connect and click install but same error everytime (On macbook Air 2020)

”Failed to initialize. Try resetting your device or holding the BOOT button while clicking INSTALL.”

The muse model has not BOOT button so what can be done? I also tried several attempts throught the CLI and hit errors every time