Thanks, it worked !!!
I have just one remaining issue, i have set up a repeating group to list all the comments. I would like to have one comment per row but it seems that all the comments are listed in the same row.
I have put here below the screenshot of the comment database and the repeating group

Capture d’écran 2020-06-02 à 23.11.02

Capture d’écran 2020-06-02 à 23.23.01

Thank you in advance for your help !