Exception : DI Error: (-5002) Document rows cannot be closed concurrently with the other document modifications you have made [POR1.LineStatus][line: 5]"

Hi all,

i am getting following error when i was trying to close the line.

Exception : DI Error: (-5002) Document rows cannot be closed concurrently with the other document modifications you have made [POR1.LineStatus][line: 5]"

This is my structure