Arduino Due and Adafruit Motor Shield v2 comms issue

Hi, I am new to Arduino. I bought a Due & AFM Shield back in 2013 but never tried it until now.

When I connected these two (with correct logic pad shorting) and tried to DC motor with sample program from AF, the motor seems to be never stopping. In fact when I load the Arduino Due with blink program the motor still keep running.

I tried an I2C scanner program from forum and it is saying "No I2C Devices Found".
Could anyone help me with the following questions please:

  1. Is there any otherway to check if these two boards are communicating?
  2. Is there any way I could fix this and make these two work?
  3. I have been through many posts on the internet and tried checking different thing but no luck yet..

I would really appreciate it if you could help me with this please.

Many thanks & Kind regards