Hello Rean,
Thank you for reporting your observation!
From the screen shot of the queries I believe you are using the Email Marketing analytic report, is that correct?
Does the blob storage container have the file "model.json"? You can check that with storage explorer. If this file is not in the storage container, then this indicates that your marketing organization is not configured fully for Power BI reporting and is not pushing the interaction data to this storage container. Please verify the Marketing Analytics Configuration in the Settings of the marketing application.

You may also place the modelStatic.json file (here on GitHub) in that storage container like I have described in this post.
But you should apply that only in addition to the files placed there by the Dynamics 365 Marketing.
Thank you for the reporting ur observation! It helps to work on a better experience for our customer that may points out certain common configuration problems that users may run into.