Error 908 with BluetoothBL extension

I had tried bluetooth connection w/ bluetooth client with an ESP32 and it was working (android 10 and 11). An then, i tried with the BluetoothBL extension with a set up pick from internet. And it did not work on Android 10 devide and Adroid 11 device.



What does that mean ?

What it shows. Remove these blocks.

Thanks you it is working but i do not find my device on the list. It is supposed to be "ESP32 smth".
Do you have any clue for me ? pls