To suppress zeros in a Kwizcom chart

I have a Kwizcom chart that gets values from SharePoint list and stacks it along the Y-axis. I am unable to suppress the zeros in the chart as some values in the list do not exist and I don't want my users to see a '0' in the charts.

Can you help me achieve it?

I used the web part settings for min value but it doesn't save it.

Please do tell me what am I doing wrong. Thanks