Chosen Solution

So I don’t know what I did but those lines appeared when I reconnected the screen and lcd cables again. the screen is not cracked or the LCD I think I broke something idk what but that screen worked just fine before I did that I really need help on this

It could be that the connectors are not fully connected into place. Double check all the display connectors to make sure that it is connected properly. If it still has lines on the display, inspect the cables to the screen as well as the connection points on the board to make sure nothing is torn or damaged.