convert text to InDesign table with apple script

Convert text to table IN design with apple  script, I am working with Adobe 6 and cc with a plugin called IN DATA to create variable data. IN DATA does not know how to work with InDesign tables so I convert textual data into tables using a apple script. The problem is that I'm trying to convert the first row in the table into a header row with the ROW TYPE command. The software announces a problem and I actually have an untitled table. How to overcome a problem Thanks Amir