I spilled smoothie on my 3ds and now the screen colors are inverted

So here the story I had my 3ds in a bag along with many things including a smoothie I packed in a bottle as I had no breakfast that day. The smoothie managed to spill onto my 3ds as soon as I got home I dried it and wiped it down and cleaned it as much as I could. Everything was working fine the controls, sound, everything . The only thing is that screen it shows the full screen and with no delays but the colors are inverted and I can’t seem to find any videos with the same problem any suggestions??