NameError: name 'dynamixel' is not defined

[MhmdBarazi]

Hello, I am using DYNAMIXEL SDK 3.7.51 with Python, on the Windows operating system. I am using U2D2 USB serial converter.
My motor is XC430-W240. I searched about this issue. I found some suggestions but none of them worked for me.

I have oak camera as well as XC430-W240 motor. I want to have my robot move based on certain coordination given by the camera. Therefore, I extract output from the camera's function as an input to dynamixel function. Furthermore, I defined the movement function as a thread. and this is my code: https://drive.google.com/file/d/1PthWIQ1hil9N8vJAWwziJkdNY0DU145X/view

Issue #1:
everything worked perfectly before coordination detection( getting into Movement() function). then this error message has appeared: NameError: name 'dynamixel' is not defined
before getting into this function there is no such an error!
What is the source of this error?
Issue #2:
I want to give the coordination in the degree unit as I did using Arduino. but I couldn't find the proper way.

Could you help me with them, please?
Thank you!