@LakshmikumarK0612 This validation error indicates you did not name the View as per the acceptance criteria in the challenge or mission exercise. I find that users make an initial mistake when naming the view, and then either deleted the view and created a new one, or tried to change the label.
I logged onto your exercise system and I see you have three variations of the Identify transfers view - and none are named as specified in the acceptance criteria.
My recommendation is to reset the Pega instance. Changing the underlying rules requires a senior level of knowledge to pull off, and there is the risk you will make an even bigger mess ;)