IndexOutOfRangeException: Array index is out of range. SceneSwitcher.OnGUI () (at Assets/Packages/Curvy Examples/Scripts/SceneSwitcher.cs:125)

HI i have this error in the curvy plugin : IndexOutOfRangeException: Array index is out of range. SceneSwitcher.OnGUI () (at Assets/Packages/Curvy Examples/Scripts/SceneSwitcher.cs:125)

the complete code:

 #if UNITY_EDITOR
 using UnityEditor;
 #endif
 
 public class SceneSwitcher : MonoBehaviour {
 
     
     bool mChkAdditive;
     Vector2 sv = Vector2.zero;
     Rect mDropdownRect;
     string[] mItems;
     bool mShow;
 
 #if UNITY_EDITOR
     void Start ()
     {
         
     }
 #endif
 
     int CurrentLevel
     {
         get
         {
 #if UNITY_5_0 || UNITY_5_1 || UNITY_5_2
             return Application.loadedLevel;
 #else
             return UnityEngine.SceneManagement.SceneManager.GetActiveScene().buildIndex;
 #endif
         }
         set
         {
             if (CurrentLevel != value)
             {
 #if UNITY_5_0 || UNITY_5_1 || UNITY_5_2
                 if (mChkAdditive)
                     Application.LoadLevelAdditive(value);
                 else
                     Application.LoadLevel(value);
 #else
                 if (mChkAdditive)
                     UnityEngine.SceneManagement.SceneManager.LoadScene(value, UnityEngine.SceneManagement.LoadSceneMode.Additive);
                 else
                     UnityEngine.SceneManagement.SceneManager.LoadScene(value,UnityEngine.SceneManagement.LoadSceneMode.Single);
 #endif
             }
         }
     }
 
     void getScenes()
     {
         var items = new List<string>();
         foreach (var lvl in EditorBuildSettings.scenes)
         {
             if (lvl.enabled)
             {
                 var path = lvl.path.Split('/');
                 items.Add(path[path.Length - 1].TrimEnd(".unity"));
             }
         }
         mItems = items.ToArray();
     }
 
 
     void onSelect(object index)
     {
         CurrentLevel = (int)index;
     }
 
     void OnGUI()
     {
         if (mItems == null)
         {
             mDropdownRect = new Rect(Screen.width - 200, 0, 295, 300);
             getScenes();
         }
         
         if (mItems.Length == 0)
         {
             GUI.Label(new Rect(Screen.width-480, mDropdownRect.y, 460, 40),"Add scenes to the build settings to enable the scene switcher!");
         }
         else {
             mChkAdditive=GUI.Toggle(new Rect(mDropdownRect.x - 180, mDropdownRect.y, 160, 20), mChkAdditive, "Additive");
             if (GUI.Button(new Rect((mDropdownRect.x - 100), mDropdownRect.y, mDropdownRect.width, 25), ""))
             {
                 if (!mShow)
                 {
                     mShow = true;
                 }
                 else
                 {
                     mShow = false;
                 }
             }
 
             if (mShow)
             {
                 sv = GUI.BeginScrollView(new Rect((mDropdownRect.x - 100), (mDropdownRect.y + 25), mDropdownRect.width, mDropdownRect.height), sv, new Rect(0, 0, mDropdownRect.width, Mathf.Max(mDropdownRect.height, (mItems.Length * 25))));
 
                 GUI.Box(new Rect(0, 0, mDropdownRect.width, Mathf.Max(mDropdownRect.height, (mItems.Length * 25))), "");
 
                 for (int index = 0; index < mItems.Length; index++)
                 {
 
                     if (GUI.Button(new Rect(0, (index * 25), mDropdownRect.height, 25), ""))
                     {
                         mShow = false;
                         CurrentLevel = index;
                     }
 
                     GUI.Label(new Rect(5, (index * 25), mDropdownRect.height, 25), mItems[index]);
 
                 }
 
                 GUI.EndScrollView();
             }
             else
             {
                 GUI.Label(new Rect((mDropdownRect.x - 95), mDropdownRect.y, 300, 25), mItems[CurrentLevel]);
             }
         }
 
     }
 
 
 }
 

the part of the code who have a error :

             {
                 GUI.Label(new Rect((mDropdownRect.x - 95), mDropdownRect.y, 300, 25), mItems[CurrentLevel]);
             }

i'm on unity 5.6 (last version)

thanks you!