Binding Amazone Echo Control login problem

Hey there,
I have a problem with the Amazone Echo Control Binding.
After weeks it isn’t possible to login in my account.
I tried it over this link:

So far so okay, but after type in the OTP. I getting this problem:

Invalid redirect to '
Try again

What can I do? I already did a reinstall. I have the version 2.5.7 installed.


This was the advice given when the same error appeared to another user: Preview and Beta: Amazon Echo Control