First of all, I’d like to give you a piece of advice so that you have a better chance of getting an answer, assemble a small one Code Snippet which reproduces the error.
In your case, you are setting the option aaSorting as a array vazio, with Datatable is not defining and much less inferring the type of each column.
So the best thing to do in this example is to omit the aaSorting, even why this option should not be used in newer versions of DataTables, in its place you must use the DataTable - Options, in particular the columns, columns.type, columnDefs and ordering
and finally, to sort a string that has a date in the format dd/MM/yyyy it is necessary to use the plugin which reference the columns.type data-eu, then set the column type to data-eu.
$(function () {
  $("#sla").DataTable({
    "columns": [
      { "type": "date-eu" },
      { "type": "date-eu" },
      { "type": "date-eu" },
      null,
      null
    ]
  });
})
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet"/>
<link href="https://cdn.datatables.net/1.10.12/css/dataTables.bootstrap.min.css" rel="stylesheet"/>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>
<script src="https://cdn.datatables.net/1.10.12/js/jquery.dataTables.min.js"></script>
<script src="https://cdn.datatables.net/1.10.12/js/dataTables.bootstrap.min.js"></script>
<script src="https://cdn.datatables.net/plug-ins/1.10.12/sorting/date-eu.js"></script>
<table id="sla" class="table table-striped table-hover">
  <thead>
    <tr>
      <th>Data Problema</th>
      <th>Data Previsão</th>
      <th>Data Inclusão</th>
      <th>Pendência</th>
      <th>SLA</th>
    </tr>
  </thead>
  <tbody>
    <tr>
      <td>10/07/2016</td>
      <td>11/07/2016</td>
      <td>10/07/2016</td>
      <td>Operacional</td>
      <td>1 hora</td>
    </tr>
    <tr>
      <td>29/07/2016</td>
      <td>29/07/2016</td>
      <td>29/07/2016</td>
      <td>Energia</td>
      <td>4 horas</td>
    </tr>
    <tr>
      <td>02/08/2016</td>
      <td>02/08/2016</td>
      <td>02/08/2016</td>
      <td>Energia</td>
      <td>4 horas</td>
    </tr>
    <tr>
      <td>02/08/2016</td>
      <td>30/08/2016</td>
      <td>02/08/2016</td>
      <td>Energia</td>
      <td>4 horas</td>
    </tr>
    <tr>
      <td>17/08/2016</td>
      <td>18/08/2016</td>
      <td>17/08/2016</td>
      <td>Operacional</td>
      <td>1 hora</td>
    </tr>
  </tbody>
</table>
 
 
							
							
						 
Very good this Extend. Made it too easy.
– Washington Morais