PHP Datatable Invalid JSON response

i have this problem with Datatable :( (Invalid JSON response) i use blade and routeone PhP code:

case 'list':
                                            {
                                                $records = DB::list(
                                                    $columns='*',
                                                    $tableName='groups',
                                                    $where='',
                                                    $whereArray=array(),
                                                    $order='order by id desc',
                                                    $limit='');
                                                switch($id)
                                                {
                                                    case 'delete-ok':
                                                        $success = messageSuccess($lang['_RECORD_DELETED_SUCCESSFULLY']);
                                                        break;
                                                    case 'delete-error':
                                                        $error = messageError($lang['_RECORD_DELETING_FAILED']);
                                                        break;
                                                }
                                                $params = array(
                                                                        'table'=>'groups',
                                                                        'pk'=>'id',
                                                                        'columns'=>array(
                                                                            array( 'db' => 'id', 'dt' => 0 ),
                                                                            array( 'db' => 'title',  'dt' => 1 ),
                                                                            array( 'db' => 'uri',   'dt' => 2 ),
                                                                            array( 'db' => 'logo',     'dt' => 3 ),
                                                                            array( 'db' => 'bio',     'dt' => 4 ),
                                                                            array( 'db' => 'type',     'dt' => 5 ),
                                                                            array( 'db' => 'date',     'dt' => 6 ,
                                                                            'formatter' => function ($date, $row) {
                                                                                $d = G2J($date);
                                                                                return '<div class="ltr text-left">'.$d['yyyy'].'-'.$d['MM'].'-'.$d['dd'].' '.$d['HH'].':'.$d['mm'].':'.$d['ss'].'</div>';
                                                                             }),
                                                                            array( 'db' => 'allow_prev',     'dt' => 7 ),
                                                                            array( 'db' => 'add_previlege',     'dt' => 8 )
                                                                        )
                                                                    );

                   
                                                if($id=="search")
                                                {
                                                    $print = false;
                                                    $page_content .= accTable($params);
                                                }
                                                else
                                                {
                                                    $page_content .= accList('group-list',$records);
                                                }
          
                                                //search, pagination, sort
                                                break;
                                             }   

HTML

    <div class="table-responsive" style="padding-bottom: 70px;">
  <table id="list" class="table table-bordered table-striped table-hover">
    <thead class="bg-primary text-light">
      <tr>
        <td></td>
        <td></td>
        <td></td>
        <td></td>
        <td></td>
        <td></td>
        <td></td>
        <td><div class="small-header"></div></td>
        <td><div class="small-header"></div></td>
      </tr>
    </thead>
  </table>

</div></span>
  <script>
  $(function () {
    $("#list").DataTable( {
          "processing": true,
          "serverSide": true,
          "ajax": "/Admin/group/list/search",
          "language": dt_lang,
          "columnDefs": [
                      {
                          // The `data` parameter refers to the data for the cell (defined by the
                          // `data` option, which defaults to the column being worked with, in
                          // this case `data: 0`.
                          "render": function ( data, type, row ) {
                              return `
                              <div class="btn-group">
                                <button type="button" class="btn btn-light dropdown-toggle" data-bs-toggle="dropdown" aria-expanded="false">
                                  <i class="bi bi-pencil"></i>
                                </button>
                                <ul class="dropdown-menu dropdown-menu-end">
                                  <li><a class="dropdown-item" href="group/add/${data}"><i class="bi bi-pencil"></i> ویرایش گروه</a></li>
                                  <li><a class="dropdown-item delete" href="group/delete/${data}" data-message=""><i class="bi bi-x"></i> حذف</a></li>
                                </ul>
                              </div>
                              `;
                          },
                          "targets": 0
                      },
                  ],
          "drawCallback": function( settings ) {
              $(".dropdown-toggle").dropdown();
            }
      } );
  })
</script>

and accTable Func:

    function accTable(&$params)
{
    // DB table to use
    $table = $params['table'];
     
    // Table's primary key
    $primaryKey = $params['pk'];
     
    // Array of database columns which should be read and sent back to DataTables.
    // The `db` parameter represents the column name in the database, while the `dt`
    // parameter represents the DataTables column identifier. In this case simple
    // indexes
    $columns = $params['columns'];
     
    // SQL server connection information
    $sql_details = array(
        'user' => _DBUNAME,
        'pass' => _DBPASS,
        'db'   => _DBNAME,
        'host' => _DBHOST
    );
     
    /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
     * If you just want to use the basic configuration for DataTables with PHP
     * server-side, there is no need to edit below this line.
     */
    require( '../Includes/datatables/ssp.class.php' );
    return json_encode(
        SSP::simple( $_GET, $sql_details, $table, $primaryKey, $columns )
    );
}

the full message error is : DataTables warning: table id=list - Invalid JSON response. For more information about this error, please see http://datatables.net/tn/1

i disabled serverside but its not problem!

source https://stackoverflow.com/questions/69727648/php-datatable-invalid-json-response