Hi @adhi_databricks ,
Since Databricks Runtime 14.0+ the default current directory has been changed:
https://docs.databricks.com/en/files/workspace-modules.html

To solve it:
1. Use Serverless, or any version 14+, like 14.3 LTS, 15.4 LTS
2. In version 13.3 change the path according to the old design, one of the solutions is simply to use absolute path to the utils:

One more thing, when retesting with different runtime/path, make sure to Clear state in the notebook: