I need help with a error: APIUpdaterRuntimeServices

Hello i need your help. Do you know how can i fix this error:

Video(please watch the video, i show the error.): https://www.youtube.com/watch?v=JY2WbA-rm78

Here are the code:

UnityEngineInternal.APIUpdaterRuntimeServices.AddComponent (obj, "Assets/RoyalDio/Scripts/GamePlay/Quest/Base/PlayerQuestManager.cs (46,5)", questList [i]);

I hope you can help. Thanks in advance Florian

And here are all codes in the file:

/// /// Quest manager. Add into Player Character this class Contain a Quest management function such as AddQuest , RemoveQuest , Checking or etc.. /// using UnityEngine; using System.Collections; using System.Collections.Generic;

public class PlayerQuestManager : MonoBehaviour {

 public GUISkin skin;
 public GameObject TextFloating;
 public List<QuestBase> Quests = new List<QuestBase> ();
 public PlayerManager Player;

 void Start ()
 {
     StyleManager StyleManage = (StyleManager)GameObject.FindObjectOfType (typeof(StyleManager));
     if (StyleManage) {
         skin = StyleManage.GetSkin (0);
     }
     
 }
 
 public void SaveQuests (string name)
 {
     string quest_list = "";
     for (int i=0; i<Quests.Count; i++) {
         if (Quests [i] != null) {
             Quests [i].SaveQuest (name);
             quest_list += Quests [i].GetType() + "|";
         }
     }
     Debug.Log ("Name Quests " + quest_list);
     PlayerPrefs.SetString ("QUEST_" + name, quest_list);
 }
 
 public void LoadQuests (string name)
 {
     string[] questList = PlayerPrefs.GetString ("QUEST_" + name).Split ("|" [0]);
     Quests.Clear();
     for (int i=0; i<questList.Length; i++) {
         if (questList [i] != "") {
             Debug.Log ("Add quest " + questList [i]);
             GameObject obj = new GameObject(questList [i]);
             UnityEngineInternal.APIUpdaterRuntimeServices.AddComponent (obj, "Assets/RoyalDio/Scripts/GamePlay/Quest/Base/PlayerQuestManager.cs (46,5)", questList [i]);
             Quests.Add (obj.GetComponent<QuestBase>());
         }
     }
     for (int i=0; i<Quests.Count; i++) {
         if (Quests [i] != null) {
             Quests [i].LoadQuest(name);
             Quests [i].Info();
             Quests [i].Checking();
         }
     }
 }
 
 public bool QuestHavedCheck (QuestBase quest)
 {
     bool res = false;
     for (int i=0; i<Quests.Count; i++) {
         if (Quests [i] != null) {
             if (Quests [i].GetType() == quest.GetType()) {
                 res = true;
                 break;    
             }
         }
     }
     return res;
 }
 public QuestBase GetExistQuest (QuestBase refQuest)
 {
     for (int i=0; i<Quests.Count; i++) {
         if (Quests [i] != null) {
             if (Quests [i].GetType() == refQuest.GetType()) {
                 return Quests [i];
             }
         }
     }
     return refQuest;
 }
 
 public void QuestPreparing (QuestBase quest)
 {
     quest.Info ();
 }
 
 public void AddQuest (QuestBase quest)
 {
     
     if (!QuestHavedCheck (quest) && Player) {
         Debug.Log ("Add Quest " + quest.QuestName);
         if(quest.Player)
         addText ("Quest " + quest.QuestName + " Accepted",quest.Player.transform.position);
         quest.Initialize (Player);
         Quests.Add (quest);
     }
 }
 
 public void RemoveQuest (QuestBase quest)
 {
     if (QuestHavedCheck (quest)) {
         Debug.Log ("Remove Quest " + quest.QuestName);
         Quests.Remove (quest);
     }
 }
 
 public void ReadEventMessage (string message)
 {
     for (int i=0; i<Quests.Count; i++) {
         if (Quests [i] != null) {
             Quests [i].ActioneMessage (message);
         }
     }
 }
 
 public void QuestCompleteCheck (QuestBase quest)
 {
     Debug.Log ("Quest Check");
     for (int i=0; i<Quests.Count; i++) {
         if (Quests [i] != null) {
             if (Quests [i] == quest) {
                 if (Quests [i].IsSuccess) {
                     Quests [i].Rewarded ();
                     if (TextFloating) {
                         if(Quests[i].Player)
                         addText ("Quest Complete",Quests[i].Player.transform.position);
                     }
                     RemoveQuest (Quests [i]);
                 }
             }
         }
     }
 }
 
 void Update ()
 {
     if(!Player){
         Player = (PlayerManager)GameObject.FindObjectOfType(typeof(PlayerManager));
     }
     
     for (int i=0; i<Quests.Count; i++) {
         if (Quests [i] != null) {
             Quests [i].Player = Player;
             Quests [i].UpdateQuest ();
         }
     }
 }
 
 void addText (string text,Vector3 pos)
 {
     if (TextFloating) {
         GameObject floattext = (GameObject)GameObject.Instantiate (TextFloating,pos, Quaternion.identity);    
         floattext.GetComponent<FloatingText> ().Text = text;
     }    
 }

 void OnGUI ()
 {
     if (skin)
         GUI.skin = skin;
 }

 public void DrawQuestList ()
 {
     if (Quests.Count > 0) {
         GUI.skin.label.fontSize = 16;
         GUI.skin.label.normal.textColor = Color.white;
         GUI.skin.label.alignment = TextAnchor.UpperRight;
         GUI.Label (new Rect (Screen.width - 350, 110, 300, 30), "Quests");
     }
     for (int i=0; i<Quests.Count; i++) {
         if (Quests [i] != null) {
             DrawQuest (Quests [i], new Vector2 (Screen.width - 350, 140 + (i * 30)));
         }
     }
 }

 public void DrawQuest (QuestBase quest, Vector2 position)
 {
     
     if (quest.IsSuccess) {
         GUI.skin.label.normal.textColor = Color.green;
     } else {
         GUI.skin.label.normal.textColor = Color.yellow;
     }
     
     GUI.Label (new Rect (position.x, position.y, 300, 30), quest.QuestDisplay);
 }

}