Hi @HariSankar ,

If you opened an old notebook or imported a notebook (DBC, HTML, or Git), then Databricks may default its serverless execution environment version to an older version (like Version 1) that isn't supported anymore on the current Serverless Compute.

Fix: Open your notebook, go into the upper right corner where compute is attached, open Environment / Compute Settings, and update the Environment Version to the latest version (like Version 2 or higher). Or, you can copy-paste your code into a brand new notebook and attach Serverless Compute there.