Why is this a Blunder?


This is a blunder because that move allows Bishop e6 saving the pawn you would have won by taking the pawn and taking back and taking with your bishop on e2. Though, I don't really understand why the chess engine is counting this as a blunder over a mistake/missed win. idk ¯\_(ツ)_/¯

Another aspect as to why this may be a blunder, is due to the fact that knights do not excel on the edge of the board, but rather the middle, and additionally where you placed the knight did not threaten any of black's pieces. A good thing to practice is general piece positioning, and learning specifically where each piece excels on the board.
Your opponent could respond with pawn to g6. This protects your opponent’s Bishop and can potentially trap your Knight if you are not careful by moving your pawn to f3.
This is a blunder because there is no rhyme or reason for the Knight to move to Nh4 at this time period.
I am doing blunder alaways I don't know how leave my mistakes