Unable to sync Index Sleep Monitor with the App (android)

Yesterday I tried to connect Index Sleep Monitor to the App, but it id not worked.

The led flashed with green, but after a few seconds it shut down.

Next I tried to tap the button; the led flashed violet, but it is unable to sync.

Today I tried again, but still it did not work.

I suspect the culprit is the new software update.

Thanks

Manlio Perillo