What is your question? You made a statement about your W-2, but you didn't ask a question.
Please explain what you mean by "Lina benefit" or where you see those words. Box 3 on your W-2 is the amount of wages subject to Social Security tax withholding. It might be blank if you are exempt from Social Security tax, but that is unusual. If box 3 is blank, box 4 should also be blank.
"Lina benefit" does not appear anywhere on a W-2.