Piper TTS not working on Galaxy 2018 Tab

Hello, I would like to integrate TTS Piper into HA so that when the front door is open, the voice indicates that the front door is open.
Piper is installed and also the Wyoming protocol.
I can’t get the Android Samsung Galaxy Tablet 2018_10_5 to talk to the media player.
Who has configured this before, what am I doing wrong? Attached are the print screens and the yaml code from the TTS automation (Settings- Automation -New Automation TTS Galaxy Tab).
Thank you very much for your help!
Have a good week!

Error with Mediaplayer Galaxy Tab

Testsensor mit TTS

TTS Piper Assitant-1v2

TTS Piper Assistant 2v2

Neue Automatisierung TTS Galaxy Tab