Shure MV7 no Function

Hello, I’m new to the Linux desktop area.
I just have a big problem.
Somehow KDE Neon can’t handle my MIC (Shure MV7). For a short time it worked…1-2 minutes. After that it doesn’t do anything anymore.
As soon as I want to use the MIC, it always restarts (I think) and then when it calms down, it doesn’t do anything.
I can’t use audio or microphone.