Hi @YukiNakagawa ,

Thanks for sharing the full error message.

The important piece is this: [UC_NOT_ENABLED] Unity Catalog is not enabled on this cluster. That means the cluster running your lab isn't configured for Unity Catalog, but the course materials require it. This isn't something you can fix from inside the notebook.

Here's what to do depending on your setup:

1. If you're using the Academy-provided lab workspace (launched via "Start Lab"), this is almost certainly a configuration issue on the Academy side. Confirm you started the lab using the official Start Lab button from the course page. If you did, contact Databricks Academy Support from the Help/Support link and include:
   • Course: "AI/BI for Data Analysts – Japanese"
   • A link to your lab workspace
   • The full error message (including [UC_NOT_ENABLED])
   • The time you attempted the lab

Only the Academy team can enable Unity Catalog or correct the cluster configuration in that environment.

2. If you copied the notebooks into your own company workspace, Unity Catalog needs to be enabled there first. Your workspace or account admin would need to enable Unity Catalog and attach the workspace to a metastore, then provide you with a UC-enabled cluster (Single User or Shared access mode with a default catalog set).

If you've already confirmed you're on the official Academy lab and still reach out to Academy Support and they'll get the environment sorted out for you.

Cheers, Lou.