Switching Weapons and RELOAD animation

I am working on an FPS game and everthing is working just fine but whenever i want to switch between the two Weapons, the previous weapon (or the hidden weapon, you name it) is basiclly not working anymore no matter what i do.

For example: when i press the "2" key and the rifle is equipped and it's reload animation is playing it switches to my sidearm but when I switch back to the rifle it simply stuck and wont shoot or reload any more. I hope that it was clear.

In the Hierarchy panel it is set like this:

FPSController

FirstPersonCharacter (Which is the camera)

EmptyGameObject with the weapon script (Parented to the FirstPersonCharacter )

WeaponModel With animations (this is a child of the EmptyGameObject)

This the Weapon Script:

 var ReloadSound : AudioSource; //reload audio source
 var DrySound : AudioSource; //empty magazine audio source
 var FireModeSound : AudioSource; //fire mode switching audio source
 var Shell : GameObject; // bullet shelll 3d object
 var ShellSpawn : Transform; // where the bullet shelll is going to be instantiated from
 public var ShootAnim : Animation; // the shooting animation
 public var ReloadAnim : Animation; // the reload animation (magazine is not empty)
 var ReloadEmptyAnim :Animation; // the reload animation (magazine is empty)
 public var IdleAnim : Animation; // the idle animation
 public var canShoot : boolean = true; // can the player shoot?
 public var canReload : boolean = false; // can the player reload?
 public var canAim : boolean = true; // can the player aim down sights?
 
 var clip = 30; // number of bullets in the magazine
 var ammoLeft = 400; // maximum ammo you can carry 
 var TimeBetweenShots : float = 0.08; // controlls the fire rate
 var timestamp : float;
 
 var Effect : Transform; // the effect that will be displayed at the bullet's hit position (like: bullet holes, blood, etc..)
 var TheDammage = 10; // the damage of a single bullet hit
 var AimSound : AudioSource; //aim audio source 
 
 var maxBulletSpreadAngle : float = 1.5f; // the bullet spread angle
 public var IsAiming : boolean = false; // is the player aiming?
 
 var MagazineDisplay : UnityEngine.UI.Text; // mag HUD
 var AmmoLeftDisplay : UnityEngine.UI.Text; // Ammo left HUD
 
 //Muzzle Flash Variables
 var MuzzleFlash : Renderer; // muzzle flash texture
 var MuzzleLight : Light; // point light
 
 var SmokePuff : GameObject; // smoke particle
 var SmokeSpawn : Transform; // position of the smoke particle
 
 public var FireSound : AudioClip; // audio file of a single shot
 var SoundSpawn: AudioSource; // audio source for the FireSound file
 
 var FullAuto : boolean = true; // boolean checking for full auto or semi auto
 
 var IsReloading : boolean = false; // is the player reloading?
 var finishReload : boolean = false; // player finished reloading?
 
 
 function Start () {
 
 MuzzleFlash.enabled = false; // disable the muzzle flash texture on start
 MuzzleLight.enabled = false; // disable the point light on start
 
 SoundSpawn = GetComponent.<AudioSource>();
 }
 
 function Update () {
    
    var hit : RaycastHit;
     var ray : Ray = Camera.main.ScreenPointToRay(Vector3(Screen.width*2, Screen.height*2, 0));
    
    var fireDirection : Vector3 = transform.forward;
    
    var fireRotation : Quaternion = Quaternion.LookRotation(fireDirection);
    
    var randomRotation : Quaternion = Random.rotation;
    
    fireRotation = Quaternion.RotateTowards(fireRotation,randomRotation,Random.Range(0.0f,maxBulletSpreadAngle));
    
    
    if(Input.GetButton("Fire1") && clip > 0 && Time.time >= timestamp && canShoot == true && FullAuto == true){
        SoundSpawn.PlayOneShot(FireSound, 0.7F);
        clip -= 1;
        Fire();
 if (Physics.Raycast (transform.position,fireRotation*Vector3.forward, hit, 100))
         {
             Debug.DrawLine (transform.position, hit.point, Color.green);
             var particleClone = Instantiate(Effect, hit.point, Quaternion.LookRotation(hit.normal));
             Destroy(particleClone.gameObject, 2);
             hit.transform.SendMessage("ApplyDammage", TheDammage, SendMessageOptions.DontRequireReceiver);
 
         }
     }
 
 
    if(Input.GetButtonDown("Reload") && clip != 0 && ammoLeft != 0 && canReload == true && IsReloading == false ){
        canAim = false;
        canShoot = false;
        Reload();
  }     
    
 
    if(clip == 0 && ammoLeft > 0 && IsReloading == false){
       ReloadSound.Play();
       ReloadEmptyAnim.Play("reload_empty");
       canAim = false;
       canShoot = false;
       AutoReload();
 
 
    }
       
    if(clip != 30 && ammoLeft != 0){
     canReload = true;
     
    }
       
 
    if(Input.GetButton("Fire1") && clip == 0 && ammoLeft == 0 && !ReloadAnim.IsPlaying("reload")){
       DryGun();
     }
 
 
 if(Input.GetButtonDown("FireMode") && FullAuto == true){
    
    FullAuto = false;
    FireModeSound.Play();
    
       }else if(Input.GetButtonDown("FireMode") && FullAuto == false){
    FullAuto = true;
    FireModeSound.Play();   
       }
       
       
       if(Input.GetButtonDown("Fire1") && clip > 0 && Time.time >= timestamp && canShoot == true && FullAuto == false){
        SoundSpawn.PlayOneShot(FireSound, 0.7F);
        clip -= 1;
        Fire();
 if (Physics.Raycast (transform.position,fireRotation*Vector3.forward, hit, 100))
         {
             Debug.DrawLine (transform.position, hit.point, Color.green);
             particleClone = Instantiate(Effect, hit.point, Quaternion.LookRotation(hit.normal));
             Destroy(particleClone.gameObject, 2);
             hit.transform.SendMessage("ApplyDammage", TheDammage, SendMessageOptions.DontRequireReceiver);
         }
     }
 
 
 MagazineDisplay.text = "" + clip;{
 AmmoLeftDisplay.text = " /" + ammoLeft;
 }
 
 
  if (hit.collider.tag == "EnemyHead");{
             TheDammage = TheDammage*2;
             }
  
 
  }
 
                                                                                                                                                                                                         
 function Fire() {
 
 
 timestamp = Time.time + TimeBetweenShots;
  ShootAnim.Play("shoot");
          if(ShootAnim.IsPlaying("shoot"))
         ShootAnim.Rewind("shoot");
 
 }         
 
 function Reload() {
 
 IsReloading = true;
 
 canAim = false;
 
 canReload = true;
 
 ReloadAnim.Play("reload_full");
 
 ReloadSound.Play();
    
 yield WaitForSeconds(3.7);
 
 var totalAmmo = clip + ammoLeft;
       if(totalAmmo <= 30){
           clip = totalAmmo;
           ammoLeft = 0;
       }else{
           var shotsFired = 30 - clip;
           clip = 30;
           ammoLeft -= shotsFired;
       }
 
 canShoot = true;             
 
 canReload = false;
 
 canAim = true;
 
 IsReloading = false;
 
 finishReload = true;
 
 yield WaitForSeconds(0.1);
 
 finishReload = false;
 }
 
 
 function AutoReload() {
 
 yield WaitForSeconds(0.3);
 
 IsReloading = true;
 
 canAim = false;
 
 canReload = false;
 
 ReloadAnim.Play("reload");
 
 ReloadSound.Play();
    
 yield WaitForSeconds(2.9);
 
  totalAmmo = clip + ammoLeft;
       if(totalAmmo <= 30){
           clip = totalAmmo;
           ammoLeft = 0;
       }else{
            shotsFired = 30 - clip;
           clip = 30;
           ammoLeft -= shotsFired;
       }
 
 canReload = false;
 
 canShoot = true;             
 
 canAim = true;
 
 IsReloading = false;
 
 finishReload = true;
 
 yield WaitForSeconds(0.1);
 
 finishReload = false;
 
 }
 
 function DryGun(){
 
 DrySound.Play();
 
 }

This is the switch script: (this script is attached to the camera)

 var primary : GameObject; //the first weapon gameobject
 var secondary : GameObject; // the second weapon gameobject
 var knife : GameObject; // knife game object
 var reloadAnim : Animation;
 var KnifeAttackAnim : Animation;
 var QuickStab : boolean = true;
 
 
 
 
 function Start () {
 
 Cursor.LockState = true;
 primary.SetActive(true);
 secondary.SetActive(false); 
 knife.SetActive(false); 
 
 }
 
 function Update () {
 
 
 if(Input.GetButtonDown("Primary")){ // The Button Primary In the parenthesis is set to number "1" on the keyboard
     primary.SetActive(true);
     secondary.SetActive(false);
     knife.SetActive(false);
 
 
 
 
 }
 
 if(Input.GetButtonDown("Secondary")){ // The Button Secondary In the parenthesis is set to number "2" on the keyboard
     primary.SetActive(false);
     secondary.SetActive(true);
     knife.SetActive(false);
 
 
 
 
 }
 
 if(Input.GetButtonDown("Knife")){ // The Button "Knife" In the parenthesis is set to number "1" on the keyboard
       primary.SetActive(false);
     secondary.SetActive(false);
     knife.SetActive(true);
 
 }
 
 if(Input.GetButtonDown("QuickKnife") && primary.active == true && QuickStab == true  ){
 QuickKnifePrimary();
 }
 
 
 if(Input.GetButtonDown("QuickKnife") && secondary.active == true && QuickStab == true  ){
 QuickKnifeSecondary();
 } 
 
 
 }
 
 function QuickKnifePrimary () {
  primary.SetActive(false);
     secondary.SetActive(false);
     knife.SetActive(true);
 KnifeAttackAnim.Play("Attack");
 
 yield WaitForSeconds (0.5);
     primary.SetActive(true);
     secondary.SetActive(false);
     knife.SetActive(false);
 }
 
 function QuickKnifeSecondary () {
  primary.SetActive(false);
     secondary.SetActive(false);
     knife.SetActive(true);
 KnifeAttackAnim.Play("Attack");
 
 yield WaitForSeconds (0.5);
     primary.SetActive(false);
     secondary.SetActive(true);
     knife.SetActive(false);
 }

If it wasn't clear let me know, I will explain it better but i really need some help with this issue. It's been a long time since I have encountered this problem and still no solution.