When I press one key the other keys in the same row presses too.

When I press one key the other keys in the same row presses too.

My brother has a "Corsair K95 RGB Platinum" and he smashed the keyboard. Because of this incident I had to replace the x key on his keyboard. But after replacing the broken key with a new key, the keyboard acts out and presses every key in the row(Shift z x c v b n m , . / Z X C V B N M < > ?). Is there any way to fix this issue?