A350 IVAO HOPPIE CPDLC

[AFR2305]

Dear Team,
I'm trying to get the clearances to work in the plane's EFIS.
I also found your PDF.
The first time I received to send to the controller until clearance.
I received the audible alarm that a message had arrived.
The message is displayed at the top of the efis, but it is impossible to validate or reject it.
Then I made several tests with an IVAO controller, I no longer receive the audible alert message,
but I then receive it in the FMS only in text and impossible to confirm clearance.
In the top EFIS I have the following message 
ACTIVE ATC : LFBD
1 ADS-C CONNECTION
I can't see the written message as I did the first time.
I am attaching photos of my screen.
I hope someone can help me.
Best regards,
Jean-Pierre Frei