Qlik Sense Desktop Authentication - June-2017 Version

[ArnadoSandoval]

Good Day Everyone,

We are experiencing an issue with one of our users working with Qlik Sense Desktop June-2017 version, as we registered him with a Qlik Account, receiving the message below; once he received the notification e-mail, he activated his new account, but he cannot login to Qlik Sense Desktop June-2017 version, as he is receiving the following messages

Registration message returned while creating the Qlik's user login

Message received by the same user, after he activated his account:

Message received when entering the user's e-mail account:

What could be wrong?