Hi
@baslan,
There is an EU agreement for such cases called ‘European Agreement on Transfer of Responsibility for Refugees’. According to article 2 of this, the responsibility for a refugee’s status is transferred to the second country after they have been living there for two years. This means Germany is now responsible for your refugee status and should issue you with a refugee passport (Reiseausweis für Flüchtlinge – Blue Passport). You can write to your local Ausländerbehörde and request this.
I do not, however, have direct experience with such a case. There may be particular reasons why they cannot give you the blue passport (e.g. perhaps related to you having a Niederlassungserlaubnis). But they must nevertheless give you the legal reasons if they do not give you one.
At the very least your entitlement for a ‘Reiseausweis für Ausländer’ (grey passport) is clear. You cannot contact the authorities of your home country and so have to be issued with one.
Hope that helps, let us know if you have any other questions.
Best,
Éanna