scrip help please

[abe.lloyd]

this scrip wont work help please
////////////////////////////
// Run when the map starts
void OnStart()
{
AddUseItemCallback("", "crowbar_1", "sewer_arched_1", "UsedCrowbarOnDoor", true);
AddEntityCollideCallback("crowbar_joint_1", "ScriptArea_1", "CollideAreaBreakDoor", true, 1);
}
void UsedCrowbarOnDoor(string &in asItem, string &in asEntity)
{
AddTimer("", 0.2, "TimerSwitchShovel");
RemoveItem("crowbar_1");
}



void TimerSwitchShovel(string &in asTimer)
{
PlaySoundAtEntity("","puzzle_place_jar.snt", "", 0, false);
SetEntityActive("crowbar_joint_1", true);
}


void CollideAreaBreakDoor(string &in asParent, string &in asChild, int alState)
{
AddPlayerSanity(25);
PlayMusic("10_puzzle01.ogg", false, 0.7, 0.1, 10, false);
SetSwingDoorLocked("sewer_arched_1", false, true);
AddPropImpulse("sewer_arched_1", 0, 0, -50, "World");
SetSwingDoorDisableAutoClose("sewer_arched_1", true);
SetSwingDoorClosed("sewer_arched_1", false, false);
SetMoveObjectState("sewer_arched_1", 1);
PlaySoundAtEntity("","break_wood_metal", "AreaBreakEffect", 0, false);
CreateParticleSystemAtEntity("", "ps_hit_wood", "AreaBreakEffect", false);
SetEntityActive("crowbar_joint_1", false);
SetLocalVarInt("Door", 1);
////////////////////////////
// Run when entering map
void OnEnter()
{
}

////////////////////////////
// Run when leaving map
void OnLeave()
{

}