2 Laptop keys not working (even when using a usb keyboard)

So I spilled water over my laptop and did all the procedures right away, turned it off and removed battery and left it to sit (upside down) for 48 hours. fortunately the pc is fine, however my W and Q keys arent working anymore. So I pugged in a usb keyboard to use for a bit and the Q and W keys dont work there either. This freaked me out, what could be the cause of this and how to fix it?

Thanks in advance.