Selector error when calling screen more than once in for each row

,i want to execute an application screen multiple times and pick a text value from the screen ? how do I do it? can any one help on this ASAP
currently I using GET TEXT activity to get the text from the screen.for the first time it is ok.but I get selector error when the screen is executed for the second time.Can any one help?

Hello @krishnan
Check if below link helps you…