Help with substituting PlayerObject...?

So, I'm trying to re-lean what little .cs I learned but have a problem with this:

if (!isObject(MoveTowardBehavior))
{
   %template = new BehaviorTemplate(MoveTowardBehavior);
   
   %template.friendlyName = "Move Toward";
   %template.behaviorType = "AI";
   %template.description  = "Set the object to move toward another object";

   %template.addBehaviorField(object, "The object to move toward", object, "", t2dSceneObject);
   %template.addBehaviorField(speed, "The speed to move toward the object at (world units per second)", 

float, 2.0);
   %newObject.spawnOnRemoveCount = %this.count;

}

function MoveTowardBehavior::onAddToScene(%this)
{
   %this.owner.enableUpdateCallback();
}

function MoveTowardBehavior::onUpdate(%this)
{
   if (!isObject(%this.object))
      return;
   
   %this.owner.moveTo(%this.object.position, %this.speed);
}

This is the original... I did this trying to make said object with this behavior fallow the player.

if (!isObject(MoveTowardBehavior))
{
   %template = new BehaviorTemplate(MoveTowardBehavior);
   
   %template.friendlyName = "Move Toward";
   %template.behaviorType = "AI";
   %template.description  = "Set the object to move toward another object";

   %template.addBehaviorField(speed, "The speed to move toward the object at (world units per second)", 

float, 2.0);
   %newObject.spawnOnRemoveCount = %this.count;

}

function MoveTowardBehavior::onAddToScene(%this)
{
   %this.owner.enableUpdateCallback();
}

function MoveTowardBehavior::onUpdate(%this)
{
   if (!isObject(%this.PlayerObject))
      return;
   
   %this.owner.moveTo(%this.PlayerObject.position, %this.speed);
}

Can someone tell me what I have to put in order for this to work?
P.S. after I did this my player fell through everything.