Help, Reading a Json file (getting error KeyNotFounfExeption)

hello, i'm using a c# script to read a jsonfile i created, having a public class ,constructor. btw using LitJson for json compatibility.... I wanted to read the file, and debug.log it.

here is my script

 using LitJson;
 using System.Collections.Generic;
 using System.IO;
 using UnityEngine;
 
 public class Base_campos : MonoBehaviour
 {
     private List<Campos> database = new List<Campos>();
     private JsonData CamposData;
 
     void Start()
     {
         // Campos campos = new Campos(0, "tste", "");//cria instancia/copia
         //database.Add(campos);
         //Debug.Log(database[0].Texto);
         CamposData = JsonMapper.ToObject(File.ReadAllText(Application.dataPath + "/StreamingAssets/campos.json.json"));
         ConstructCamposDatabase();
 
         Debug.Log(database[0].Texto);
     }
 
     void ConstructCamposDatabase()
     {
         for (int i = 0; i < CamposData.Count; i++)
         {
             database.Add(new Campos((int)CamposData[i]["id"], CamposData[i]["texto"].ToString(), CamposData[i]["link"].ToString()));
         }
     }
 }
 
 public class Campos
 {
     public int ID { get; set; }
     public string Texto { get; set; }
     public string Link { get; set; }
 
     public Campos(int id, string texto, string link)
     {
         this.ID = id;
         this.Texto = texto;
         this.Link = link;
     }
 }
 

i'm getting the error:

 KeyNotFoundException: The given key was not present in the dictionary.
 System.Collections.Generic.Dictionary`2[System.Int32,System.Int32[]].get_Item (Int32 key) (at /Users/builduser/buildslave/mono-runtime-and-classlibs/build/mcs/class/corlib/System.Collections.Generic/Dictionary.cs:150)
 LitJson.JsonReader.Read ()
 Rethrow as JsonException: Invalid token '123' in input string
 LitJson.JsonReader.Read ()
 LitJson.JsonMapper.ReadValue (LitJson.WrapperFactory factory, LitJson.JsonReader reader)
 LitJson.JsonMapper.ReadValue (LitJson.WrapperFactory factory, LitJson.JsonReader reader)
 LitJson.JsonMapper.ToWrapper (LitJson.WrapperFactory factory, System.String json)
 LitJson.JsonMapper.ToObject (System.String json)
 Base_campos.Start () (at Assets/scripts/Base_campos.cs:16)
 

Any idea on how to solve it?