Run follow me and object_detection on kaya

I am making kaya robot.When I run follow me and object_detection, I will report such errors.
Dynamixel error [RxPacketError] Input voltage error!
Error while reading register 23
Do you know how to solve this problem? The input voltage of my motor is 11.9v, which is supposed to be correct, and I don’t know where the error is.

Could you please let us know if the program runs fine even with the error message?