Current password can't be blank when updating devise account

I am using devise and I want to allow the user to update his account (email & password). So when I click on edit_user_registration_path, I get a page where the user can change his email and password. But when submitting this update form I constantly get this message :

1 error prohibited this user from being saved: ×
Current password can't be blank

in my ApplicationController, I have

def configure_permitted_parameters
    devise_parameter_sanitizer.for(:sign_up) { |u| u.permit(:name, :surname, :email, :user_name, :terms_of_service, :password, :password_confirmation) }
    devise_parameter_sanitizer.for(:account_update) { |u| u.permit(:email, :password, :password_confirmation) }
end

Someone can explain that ?