Translator with Microsoft Azure doesnt work!

Hey there,
since several days i am trying to establish an Line Translater for our Group.

I tried also a blank bot, also like the template bot for translation. I have the free account and the azure account with the text translator ressource.

On Azure i have two keys, but Microsoft says one is enough. (The second is backup).

I put these key (i tryied also both keys at both positions) into the translation setting bot and profile, but nothing happens. The Bot gives me always the error Message i told him.

I am not possible to connect to Azure. On Statistics in Azure there is nothing counted, no traffic, noting.
Can someone help me in this case?

have a nice day
Alex