Multi tenant notifications with noticed gem

I am trying to use Noticed gem with ActAsTenant gem, but it does not work. I followed Chris Oliver tutorial on YouTube.

but I got this error, when I use act as tenant:

uninitialized constant PropertyNotification::Current

Notifications model:

belongs_to :account
acts_as_tenant :account

In PropertyNotification < Noticed::Base

def to_database
    {
      type: self.class.name,
      params: params,
      account: Current.account
    }
end