Alexa devices removed not recognize anymore

I’ve change the place of a light connected through DeCONZ to Home Assistant so I renamed it, it works fine but on Alexa it was not updated, still the old name and then not able to communicate with it, so I removed it from Alexa devices list, thinking about doing a new detection but no devices added.
Is there any solution to get in fixed ?

Well now it is even worst.
I removed all my Home Assistant devices from Alexa, removed skill and recreate everything.
Unfortunately there is still no way to detect any devices.
I know really don’t understand what can be wrong.