Current_account nil on login, signup, and after accepting invitation

Hi guys,

I'm trying to understand why the current_account is not set when a user logs in, signs up or accepts an invite... which throws the following error about "current_account.id" : 

undefined method `id' for "/":String

Should I add a switch method after sign in, sign up and invitation?
Or is there some configuration that I'm missing here?

PS: I only have that issue on the last app I'm currently building (and not on the previous JSP apps that I used)