How to use Unity Events and Unity Actions [Subs&UnSubs]

My main problem is when Vuforia events triggered like image targeting lost everthing works correctly inputs disconnected but when I re-found image target with camera and use jump button its triggering twice.

How should I use UnityActions, UnityEvents correctly for these kind of situations ?

Vuforia Observer Handler

 public class DefaultObserverEventHandler : MonoBehaviour
 {
     public UnityEvent OnTargetFound;
     public UnityEvent OnTargetLost;
 
     protected virtual void OnTrackingFound()
     {        
         OnTargetFound?.Invoke();
     }
 
     protected virtual void OnTrackingLost()
     {        ​
        ​OnTargetLost?.Invoke();
    ​ }
 }

AR MANAGER

 public class ARManager : MonoBehaviour
 {
     public UnityAction _onFound;
     public UnityAction _onLost;
 
     private void Awake()
     {
         _onFound += GameManager.Instance._inputManager.ConnectInputs;
         _onLost += GameManager.Instance._inputManager.DisconnectInputs;
 
         _observerEventHandler.OnTargetFound.AddListener(_onFound);
         _observerEventHandler.OnTargetLost.AddListener(_onLost);
     }
 }

Input Manager

 public class InputManager : MonoBehaviour
 {
     public UnityAction OnJumpPressedAction;
 
     public void ConnectInputs()
     {
         OnJumpPressedAction += 
         GameObject.FindGameObjectWithTag("Player").GetComponent<CharacterMovementSystem>().OnJump;
         GameManager.Instance._guiManager._jumpButton.onClick.AddListener(OnJumpPressedAction);
     }
 
     public void DisconnectInputs()
     {
         OnJumpPressedAction -=  
         GameObject.FindGameObjectWithTag("Player").GetComponent<CharacterMovementSystem>().OnJump;
         GameManager.Instance._guiManager._jumpButton.onClick.RemoveListener(OnJumpPressedAction);
     }
 }

Thanks !