Eteria App Errors

I can't see my Eteria on the Bluetooth list

My Eteria is disconnected

My WiFi network isn't visible to connect my Eteria

The app reports me a “Bluetooth Error”

The app reports me an "ERROR 6" after WiFi connection

The app reports me an “ERROR 1” after the WiFi connection

The app reports me an “ERROR 2” after the WiFi connection

The app reports me an “ERROR 3” after the WiFi connection

The app reports me an “ERROR 4” after the WiFi connection

The app reports me an “ERROR 5” after the WiFi connection

The app reports me “Ops, something went wrong” after the WiFi connection

What app should I download for my Eteria?