External microphone with Apple adapter not working with my iPhone 15 Pro Max.

Hi there. I’m looking for any advice or suggestions for an issue I’ve run into with external microphones. As the title says, I’m trying to use an external microphone to create social content; however, with the Apple adapter, the microphone won’t work with my iPhone 15 Pro Max.

Both the adapter and microphone are brand new.

The adapter is Apple USB-C to Lightning. The microphone is a Pixel Lavalier Microphone with a lightning cord.

Any thoughts on what could be the reason I’m having issues?