Nagarro ngrf

Hello, I have been following the company "nagarro" since yesterday. When I look at which exchange these shares are traded on, you indicate that this is "pink current" with the ticker symbol " ngrrf". 

When I investigate this further and so on Nagarro's website. Then it says that the share is traded on the German stock exchange "extra" with ticker symbol "na9" 

Is it possible for you to clarify this? Also at the time of this writing, the German stock exchange is open and the seeking alpha application indicates that it is closed... Please help me understand this.Thank you in advance!Thank you in advance!