NullReferenceException: I think unity bug

i looked every where...check back, make a new script but no way!!!

NullReferenceException: Object reference not set to an instance of an object :blablabla UnityEngine.MonoBehaviour:StartCoroutine_Auto(IEnumerator) :blablabla

tell me where is the problem.... because now it just make no sens!!

 ...............
 //things
 
 var Target:Transform;
 
 var BSpawn:Transform;
 
 //parts
 
 var VacumPod:Transform;
 
 var Pod:Transform;
 
 //Amos
 
 var CrateAmo:int=0; 
 
 var CrateAmoMax: int=0;
 
 var EnergyBoxAmo:int=0;
 
 var EnergyBoxAmoMax:int=0;
 
 var ReactorAmo:int=0; 
 
 var ReactorAmoMax:int=0;
 
 var MineAmo:int=0; 
 
 var MineAmoMax:int=0;
 
 //bullets
 
 var Mine:Transform;
 
 var Crate:Transform;
 
 var EnergyBox:Transform;
 
 var Reactor:Transform;
 
 private var ShotPose=false;
 
 ...........................................................................................................................................................................................................................................................................
 
 function Update () 
 {
 
 if(CrateAmo>CrateAmoMax){CrateAmo=CrateAmoMax;}             
 
 if(EnergyBoxAmo>EnergyBoxAmoMax){EnergyBoxAmo=EnergyBoxAmoMax;}
 
 if(ReactorAmo>ReactorAmoMax){ReactorAmo=ReactorAmoMax;}
 
 if(MineAmo>MineAmoMax){MineAmo=MineAmoMax;}
 
 /////////////Distance and see the player
 
 var Pdistance=Vector3.Distance(Target.position,VacumPod.position);
 
 if(Pdistance0){
 
 varCratez=Instantiate(Crate,BSpawn.transform.position,BSpawn.rotation);}
 
 Cratez.transform.rigidbody.AddForce(transform.forward*100000);
 
 yield WaitForSeconds(3);ShotPose=false;}
 
 ...........................................................................................................................................................................................................................................................................
 
 function ShotReactor(){ReactorAmo-=1;
 
 if(ReactorAmo>0){
 
 var Reactorz=Instantiate(Reactor,BSpawn.transform.position,BSpawn.rotation);} 
 
 Reactorz.transform.rigidbody.AddForce(transform.forward*100000);
 
 yield WaitForSeconds(3);ShotPose=false;}
 
 ...........................................................................................................................................................................................................................................................................
 
 function ShotEnergy(){EnergyBoxAmo-=1;
 
 if(EnergyBoxAmo>0){
 
 var EnergyBoxz=Instantiate(EnergyBox,BSpawn.transform.position,BSpawn.rotation);} 
 
 EnergyBoxz.transform.rigidbody.AddForce(transform.forward*100000);
 
 yield WaitForSeconds(3);ShotPose=false;}
 
 ...........................................................................................................................................................................................................................................................................
 
 function ShotMine(){
 
 MineAmo-=1;
 
 if(MineAmo>0){
 
 varMinez=Instantiate(Mine,BSpawn.transform.position,BSpawn.rotation);} 
 
 Minez.transform.rigidbody.AddForce(transform.forward*10000);
 
 yield WaitForSeconds(3); ShotPose=false;}