Reading data from micro:bit into appinventor

When I try to request acelerometer updates from micro:bit with appinventor via bluetooth I got an runtime error:
Service e95d0753-251d-470a-a062-fa1922dfa9a8, characteristic e95dca4b-251d-470a-a062-fa1922dfa9a8 are not published by the connected device.

This is my code in micro:bit:

I can’t publish the appinventor code to gallery because it has extensions. But here is the aia file:
Microbit_BLE_Base_acelerometer.aia (269.4 KB)

I used the bluetooth extension from this forum:
FAQ Section: BlueTooth/BLE and Micro:bit


Hi, I have the exact same error, did you manage to fix it? I can't find the solution anywhere = (

For me, I unpaired the micro:bit from my phone and reconnected it. It worked after that.

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