Solved! COMPAQ KEYBOARD KEYS=

In cases like this, give it a few hours, as the cleaner may have seeped into the electronics, i.e. see if they dry out.
 
Solution
Did you take them off? If so make sure you installed them properly.

If you actually used some sort of liquid to clean things, you may end up needing a new keyboard if it does not work after a while as buwish said.