Error on ADSync, No user found in Console

Casablanca_HS
Casablanca_HS Posts: 1

I've synced a single User to Teamviewer with the ADSync script, but i've recieved a Server Error 500. Received content was:

{"error":"internal_error","error_description":"","error_code":3}

On the second try I recieved Server Error 400 

{"error":"invalid_request","error_description":"This e-mail address is already in use","error_code":1}

But in the management console (logged in with the main account) their is no user created, an if I try to login with the newly created email and password, it says user does not exist!

How can I delete this user? And what went wrong on creating a user over the API?