I am trying to create a multi-series column chart in our application. The error I am getting is - "Cannot read property 'category' of undefined"
I tried to recreate the issue in jsfiddle (https://jsfiddle.net/Apeksha82/j092Lewy/13/) before creating a topic here, but I get a different error there - "FusionCharts is not defined". I am comparing mine with your jsfiddle here - http://jsfiddle.net/fusioncharts/ppcas1oo/, but can't see what is wrong. I have included the required references.
Could you please take a look at the jsfiddle error?