Hi cjlopesmartins!
Welcome to our forum and thanks for contacting us with your question!
Here you can find our official API documentation about data for errorbar chart type:
https://api.highcharts.com/highcharts/s ... orbar.data
And here is a simple demo to show error bars next to columns:
https://jsfiddle.net/BlackLabel/fpqyeu60/
As you can see everything is working correctly, all you need to do is set data based on docs. If you still have some problems, please recreate your issue in the online editor that I could work on.
Regards!