Trouble connecting Zwift Companion to my MacBook Air

I have all of a sudden run in to an issue whereby I can no longer connect to zwift on my MacBook by using the companion app. In the bluetooth section of paired devices, there are two opetions that you should be able to choose from: “Use Built-in Bluetooth” or “Use Zwift Companion”. I have always used “Use Zwift Companion”, but now I am no longer able to select that option. Can anyone help me solve this problem?

Thanks

Is the device, that the companion app is running on, on the same Wifi network as the Macbook?