Fix: pie chart not rendering when series doesn't exist in options. (#3756)

Author: arikfr

client/app/visualizations/chart/plotly/utils.js

@@ -527,7 +527,7 @@ export function prepareLayout(element, seriesList, options, data) {
           y: yPosition + cellHeight - 0.015,
           xanchor: 'center',
           yanchor: 'top',
-          text: options.seriesOptions[series.name].name || series.name,
+          text: (options.seriesOptions[series.name] || {}).name || series.name,
           showarrow: false,
         };
       }));