Component Protection

My Audi Avants component protection has activated. Again. For no reason , i was just driving as i do and audio had switched to the just the left side speaker, restarted the car and saw the error on my screen.

I got it reset at the local audi dealer some months back and paid just under $550 for it.

Anyone else know a resolution for it? as i am not paying that amount again 😂

Vehicle is a 2014 A4 Avant