PBU203 training module - container status change processing

I'm not able to successfully complete an exerice in the Delmia Apriso course. Problem is in Lab 5 Course is PBU203 UI Building a screen flow with User Interactionss Chapter 2 - Configuring Container Status Update - Labs When I try to change the status, I get the error 'Container Status does not exist. Status : 0 Can we get Apriso assistance to determine what am I doing wrong? Thank you.