Problems with Mac OS Catalina 10.15.5

I downloaded the Audacity version 2.4.1 on my Mac on Catalina 10.15.5 but I am not able to do recordings.

The program recognizes my Focusrite Interphase 2.i.2 but there is no recording signal.

I am using the same Setup and Preferences I have on a Mac running El Capitan.

I understood thath with this new version recording was possible on MacOs Catalina.