Problems with the audio driver

Hello,
Since today i have a problem with my combination. (Macbook & DDJ-RB)
Every Time i reboot my Mac (Big Sur) the driver isn't working anymore.
When i start Recordbox, nothing is working. When i reinstall the driver without reboot everything is working. But after reboot, i have the same problem.
I already have tried to reinstall the drivers and update the firmware but no solution.
Can you please help me?