Hi!

I'm trying to use the plugin and it worked fine, until today when I wanted to add new credentials. It returns HTTP 400 {"error_description": "code doesn't exist or has expired", "error": "invalid_grant"}, and after some investigation I figured out that the cause of this is that it is sending the token as an Access Code used to retrieve the Access Token, instead of sending it as Access Token. Also, on another Jenkins instance, when I try to add credentials it returns: java.net.ConnectException: Connection refused (Connection refused), and I still haven't figured out what is causing this.

Thank you in advance.