Hi Yeniffer,
Since you are still in the v1.28 series, you might be able to access Lumira cloud. But I would go ahead and upgrade to v1.30 which has lot of new features. In this case, you can share to the BI Launchpad or Lumira Server for Teams. Do you have any of these ?
Also refer to, SAP Lumira Cloud
Thank you,
Varun Anand