It would really help to give a code example on how to configure series for the RangeBar Chart type, the online page has no close example to it,
Also the API documentation does not open class details, there seem to be something wrong.. please check this class for instance:
https://vaadin.com/api/com.github.appreciated/apexcharts/23.0.0/com/github/appreciated/apexcharts/config/series/SeriesType.html