Thanks for your question. I may be wrong if there is another issue, however, this is most likely because you only purchased 1 seat - which would be for yourself. Qlik Sense Cloud Business requires you to purchase more than 1 seat. 1 for you and some number of users.
I speak about this here in the video: Qlik Sense Cloud - Upgrading to Qlik Sense Cloud Business - YouTube at this time code: Qlik Sense Cloud - Upgrading to Qlik Sense Cloud Business - YouTube
You can learn more here as well.
Let us know how you do.
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