I Checked at "My Orders" and find the number right of the Product that i buy... i enter this 5 numbers in the backend from jomsocial to upgrade it but i still get this 2 messages:
Fehler
This license is invalid. Please contact us for more information!
You are installing component on 'localhost', please visit the My Downloads page and take the license number from there. Then, just input license number in next field so you can install component.