Trying to get a script to work

[Akasu]

This is what I've got:

void StateChangeLever(string &in asEntity, int alState)
{
if(alState == 1){
SetLeverStuckState(asEntity, 1, true);
}
}

^ This part works allright.
...

void Burn("fireplace_1",OnIgnite)
{
if(GetLeverState ("fire_lever_1") < 1){
SetLampLit("fireplace_1", false, true);
}

if(GetLeverState ("fire_lever_1") == 1){
SetLampLit("fireplace_1", true, true);
}
}

The Burn is written on the CallbackFunc-field of the fireplace_1 in the editor
It crashes when I try to start the level and gives an error like this :
"main (8,11) : ERR : expected data type"

I was trying to make a fire burn only when a specific lever had been pulled... Any ideas why it doesn't work ?