Nothing happens when player collides with area.

[Datguy5]

So basically the problem is.When the player collides with an area called Bang nothing happens.Here is my hps file.
////////////////////////////
// Run when entering map
void OnStart()
{
PlayMusic("hall.ogg", true, 1.0f, 1.0f, 1, false);
SetEntityPlayerLookAtCallback("Areas", "Sign_1", false);
AddEntityCollideCallback("Player", "Bang", "Scare1", true, 1);
}
void Sign_1(string &in asEntity, int alState)
{
SetMessage("Signs", "Sign3", 2);
}
void Scare1(string &in asTimer)
{
PlaySoundAtEntity("", "scare_male_terrified5.ogg", "Player", 0, false);
CreateParticleSystemAtEntity("", "Phaa", "Particle", false);
AddTimer("", 0.2, "Thimer");
}
void Thimer(string &in asTimer)
{
GiveSanityDamage(10.0f, true);
PlaySoundAtEntity("", "react_sigh.snt", "Player", 0, false);
}
////////////////////////////
// Run when entering map
void OnEnter()
{
}
////////////////////////////
// Run when leaving map
void OnLeave()
{
}
Help?