Can't authorise alexa pi

[dddnick]

Your OS (including version) where you are running AlexaPi:

Debian

Your hardware platform and model you are running on:

Raspberry Pi 3B

Python release (python3 --version):

Python 3--3.9

Description of problem:

Can't authorize Alexa pi 

I can't authorize Alexa Pi it just gives me an error:
400 Bad Request
The redirect URI you provided has not been whitelisted for your application. Please add your redirect URI in the 'Allowed Return URLs' section under 'Web Settings' for your Security Profile on the Amazon Developer Portal.

but I already added my redirect URLs
how do I fix it

[mig-bello]

Can you post what you see when you run the setup?