Kettle as source file not running in pentaho cde dashboard

Hello Techies,
Good morning,

I am facing one issue, I have Kettle as source file to generate bar chart.
I have added kettle file in datasource also I have given the step name exactly as it is kettle transformation file.
But still I am not able to generate bar chart (kettle file is running perfectly in spoon).

In my dashboard I have two reports. For both reports I have used Kettle as source file. My one is running perfectly while other dashboard is giving the problem (i.e. error is "Error Processing component (Chartname)");

I do not understand what I have missed. I have thoroughly checked everything. But still I am getting the issue.
Please help me out.


Deepest Gratitude.