Trouble with DAC, help

Hello, hope you are all doing well.
I am trying to use the DAC basic code already provided by Zerynth. I am using Flip&Click board, but it kept saying the board does not support such pin function. I looked at the pinmap, but I cannot find the pin that supports the DAC function. Can you direct me to the right resource?

Here is the image of the code:


Here is the error:

I also tried to change line 25 to my_dac = dac.DAC(D8)
it works but it complained about cannot find the name DAC 0

Thank you