[cbk1994]

It needs to be clientside. You should also not mix old GScript with new GScript.

PHP Code:

//#CLIENTSIDE
function onPlayerTouchsMe(){
  setcoloreffect(0,0,1,0.4);
  sleep(1);
  setcoloreffect(1,1,1,1);
} 


Keep in mind that this will only work online.