Подскажите, почему на почту не приходит поле TXB из формы, все остальные почему-то приходят кроме этого

<form action="" method="post" class="ajax_form af_example">
          <div class="data-list table-list">
            <table id="mytable">
              <thead>
                <tr>
                  <th>VARIETY</th>
                  <th>TXB</th>
                  <th>40СМ</th>
                  <th>50СМ</th>
                  <th>60СМ</th>
                  <th>70СМ</th>
                  <th>80СМ</th>
                  <th>90СМ</th>
                  <th>BUNCH</th>
                  <th>STEMS</th>
                </tr>
              </thead>
              <tbody>
                <tr class="data-row" onkeyup="foo(this)">
                  <td><span>VARIETY</span> <input type="text" name="razn[]" value="[[+fi.razn]]"  name="razn[]"></td>
                  <td><span>TXB</span> <input type="text" name="txb"  id="txb" value="25"></td>
                  <td><span>40СМ</span> <input type="text" name="40cm[]" value="[[+fi.40cm]]"  id="cm40" class="class"></td>
                  <td><span>50СМ</span> <input type="text" name="50cm[]" value="[[+fi.50cm]]" id="cm50" class="class"></td>
                  <td><span>60СМ</span> <input type="text" name="60cm[]" value="[[+fi.60cm]]" id="cm60" class="class"></td>
                  <td><span>70СМ</span> <input type="text" name="70cm[]" value="[[+fi.70cm]]" id="cm70" class="class"></td>
                  <td><span>80СМ</span> <input type="text" name="80cm[]" value="[[+fi.80cm]]" id="cm80" class="class"></td>
                  <td><span>90СМ</span> <input type="text" name="90cm[]" value="[[+fi.90cm]]" id="cm90" class="class"></td>
                  <td><span>BUNCH</span> <input type="text" name="bounch[]" value="[[+fi.bounch]]"  id="bounch" ></td>
                  <td><span>STEMS</span> <input type="text" name="stems[]" value="[[+fi.stems]]"  id="stems" ></td>
                </tr>
              </tbody>
            </table>
            <button type="button" class="btn-add {$_modx->resource.indexCountry}">+</button>
          </div>
                    [[+fi.success:is=`1`:then=`
    <div class="alert alert-success">[[+fi.successMessage]]</div>
    `]]
    [[+fi.validation_error:is=`1`:then=`
    <div class="alert alert-danger">[[+fi.validation_error_message]]</div>
    `]]
</form>