MacBook doesn't boot and appears a message of firewire and thunderbolt

Hi,

I spilled soda on my keyboard (only a little) and the only problem was that some keys didn't work good, all other components work perfectly. I disassembled all the laptop and clean the keyboard with distilled water. I let it dry and I assembled the MacBook again. Now appears on the screen a picture of the battery and the symbol of the firewire and thunderbolt (I've attached a picture).

What could I do?

Thanks for your attention and sorry for my english, is not my mother language.