Posible error in powerBI.com

Hi Vanessa,

Thanks for replying and I do understand the bias of my question.

However the purpose is exactly as it is, just a general question, when we facing error, in which, it is not a formula / syntax error which pop up during writing process that we can easly understand, so it is typical run time error which resulting Visualization suddenly cannot be displayed at PowerBI Service, is there any log that we can check ? 

I'm not familiar with Azure or this cloud thing, since in the olden days, we can just go through Even Viewer, there we can see System Log or Application Log or Audit log, even in the installation folder of the application it self sometimes has a folder to keep log, and we can look through it to know what is happening.

But if we're going more deep into my exact problem, I have PowerBI reports which using Direct Query. It is connected to Azure database, in which at Power BI desktop, it was no problem, but after published, the visualization returned error :

And yes, it was ok in earlier time, but somehow now it is not. However, as this is a report that built not only by me and also I'm not the portal admin or powerBI service admin, so it is hard to tell what being change. We're at 90% certain the report is not changed, but still there is the 10% possiblity, and also it maybe the configuration changed, that we would like to know.

So, my intention is, what tools or menu or anything that we can check that elaborate more than the error that PowerBI throw as above. Basicaly is there any error handling procedure to deal with run time error in Power BI Services ?

Many thanks in advance.