lever problem

[Lizard]

I have a problem with lever i set in my cs.

The first time i scripted it in, it worked perfectly, but now after that i copied that script into another file, and changed the names that need to be changed, it wont work.

void OnStart()
{
SetEntityConnectionStateChangeCallback("bro_lever", "UnLockDoor");
}

void UnLockDoor(string &in asEntity, int level_state)
{
if (level_state == 1)
{
SetSwingDoorLocked("castle_1", false, true);
PlaySoundAtEntity("", "ui_sanity_gain", "Player", 0, false);
GiveSanityBoost();
}
}