What could be wrong with the victor?

[Thundrio]

i am using the base motor control example to see if the victor is working properly. i have the settings for the module/motor type/pwm channel set up right, and the speed is set to 0. when i run the program the light on the victor should be solid yellow, but it still blinks signifying a loss of data connection error.

i have searched and searched how to fix this and the closest i have come is that we might have to shave some plastic off the pwm that connects to the victor to make a tighter connection. also that we need a 6v jumper but that hasnt helped so far.

so what can be done to fix this? is a jumper needed?

thanks for the help.