Me neither 😅 But since it's the instructions and the paperwork from the french embassy. I think it's will be alright. I can let you know on this post if you wish.
Thanks for your quick answer. I tried the 10 techniques. Tried 3 different browsers. Tried the android app but can't register (I not get the email for confirm my account). So, I suppose I don't have a choice to lose my time at the immigration office. I wish one day they hire just one decent programmer/developer who actually can make a thing as basic as an online form that work... One last question : there is no 7 days delay AFTER the due date? What this 7 days are about then?