Extrude lines in JHS Power Bar Plugin


I have a question about extrude line in JHS Power Bar plugin. I have tried to create a line and select the line, then click on extrude line in that plugin, but it didn’t extruded as seen in youtube tutorial, it was only an offset from first to second point with the same line, there is no any extrusion at all. Please advise me how to correct my steps please thanks.

please refers to my link : https://ufile.io/fk7et