I got stuck on that 'tentative au connexion de seveur' screen for a while before it just said the conenction failed and to try again later. Is this a bug or are the servers just down?

Servers are maybe down my dear friend. Usually that happens to most people

I suggest refreshing or wait fora few minutes then refresh and try logging in.

In this case, its either servers are down or lag. So, I don't think this is a bug.