Reorder fields in a bar chart


I’m using Grafana Cloud, with InfluxDB cloud as source, and I’m trying to reorganize fields in a bar chart.
The field’s are shown in alphabetical order, but I’d like to set a personalized order.

I tryied with no sucess, using “Organize fields” transformation, which returned “Organize fields only works with a single frame. Consider applying a join transformation or filtering the input first.”
But using this “join” transformation didn’t work as expected.