Wedj No Audio Using 3.5 Adapter For iPhone XS

Hi, would appreciate if anyone can help. I am using iphone XS with Wedj and Mcdodo adapter with both 3.5mm audio and charge function.

For some reason there is no audio using WeDJ

All other apps are perfectly ok. like SPOTIFY, MUSIC, etc

The moment i plugged out the adapter the audio comes out of the iphone speaker but not using the adapter.