I can't log in to coco.fr anymore.

Hello,

Only they could perhaps tell you why... So, check their terms of use and use the contact form on their site...

But, you should know that this site does not have a very good reputation, just look at the numerous discussions about them:

https://forums.commentcamarche.net/forum/s/internet-reseaux-sociaux-10/coco

And also:

https://forums.commentcamarche.net/forum/s/coco.fr

--
My mission is to kill time and his is to kill me in turn.
We are quite comfortable among assassins. (E.Cioran)