I realize that you are very new to this, but you need to provide more detail in your description. Just saying the plane "has no power" doesn't help much. What kind of damage? What happens when you plug the battery in? Does it make any noises or beeps? Can you make the control surfaces work when you move the transmitter sticks?
Without any more information than what you gave, all I can suggest is to begin at the beginning. Start with checking the connections between the motor and the ESC/control board/receiver, then the connections between the ESC and battery, then the battery itself (is it damaged?). Check the wiring connections between the servos and control box. Look for any breaks or disconnections.
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