[solved] YUN and I/O Expansion Shield for Arduino V7

I have one I/O expansion shield V7.1 from DFRobot.

some vendors say that it is compatible with the YUN. On mine, its different : a 5V pin (of the SDA/SDL connector of the shield) has physical contact with the ethernet port (and maybe a GND pin too) .
Look at the photo I have attached

Does anybody have experience with this shield ?

Solution after 3 hours : Use stacking headers