resultset Model Error

Error?
1. You have set Entity to return result
2. You are using findAll() method (returns an array of results)

There is no error here.

this is my entity:

PHP Code:

<?php
namespace App\Models\Entities;

use CodeIgniter\Entity;
use App\Models\IseeModel;

class Isee_documenti_documenti_dichiarante_Entity extends Entity
{
    function isee()
    {
      $model= new IseeModel();
      return $model->find($this->id_isee);
    
    }


} 


and this is my model :

PHP Code:

<?php

namespace App\Models;

use CodeIgniter\Model;


class Isee_documenti_documenti_dichiaranteModel extends Model {

   protected $table = 'isee_documenti_documenti_dichiarante';
    protected $primaryKey = 'id';

    protected $returnType = 'App\Models\Entities\Isee_documenti_documenti_dichiarante_Entity';
    protected $useSoftDeletes = true;

    protected $allowedFields = ['id','id_isee','nome_file','id_div','created_at','updated_at','deleted_at'];
    protected $useTimestamps = true;
    protected $createdField = 'created_at';
    protected $updatedField = 'updated_at';
    protected $deletedField = 'deleted_at';

    protected $validationRules = [];
    protected $validationMessages = [];
    protected $skipValidation = false;

      function oggetto_di_user($user_id,$id)
      {
        $this->where('id_users',$user_id);
        $this->where('id ',$id);

                $res=$this->findAll();

                if($this->countAllResults()==0){
          return TRUE;
        }else{
          return FALSE;
        }
      }



    public function value_unique_on_update($id,$value){

        $this->where('value',$value);
        $this->where('id !=',$id);

        

        if($this->countAllResults()==0){
          return TRUE;
        }else{
          return FALSE;
        }

    }


} 


but in other project not return this result but only multidimensional array