Mclaren GT3 buttons disconnection in LMU

Good day!
Please, anyone can help me?
I have a CSL DD 8nm + Mclaren GT3 steering wheel + pedals load cell
I've tried to play in PC mode (red light) and in CSW mode (yellow light)
In the second mode I can see more compatibility with the steering wheel, in LED for example.
But, in both options I have the same problem, the buttons of steering wheels stop to function and the LED freeze!
I continue on the control of the vehicle with FFB function normally, but the buttons not responding. I need to restart the base to solve the problem.
I really would like to know ff have something that I could make to solve this problem, please, I need a solution!