Только одна кнопка отправки работает из двух в форме laravel

В этой форме есть одна форма и две кнопки отправки. Только один работает, а при нажатии другого обновляет страницу. Любая подсказка, почему кто-то обновляет, а не отправляет?

Мой код Blade:

<button type = "button" class = "btn btn-primary btn-sm disabled-btn" title = "Generate PO & View" onclick = "generatePoModel()">Generate PO & View </button>
<!-- <button type = "submit" name = "approve" value = "approve" class = "btn btn-primary btn-sm disabled-btn" title = "Generate PO & Send" data-toggle = "modal" data-target = "#emailModal" id = "generatePo">Generate PO & Send </button>-->
<button type = "submit" name = "approve" value = "approved" class = "btn btn-primary btn-sm disabled-btn" title = "Generate PO & Send">Generate PO & Send </button>

@if ($update_purchase_requisition_approval_data['purchase_approval_status'] != 'onhold')
<button type = "submit" name = "approve" value = "onhold" 
        class = "btn btn-primary btn-sm disabled-btn" 
        title = "Hold On Order">On Hold </button>
@endif

@if (App\Helpers\DesignationPermissionCheck::isPermitted('purchase-requisition-approval.delete') &&$update_purchase_requisition_approval_data['purchase_approval_status']
== 'pending')

<button type = "submit" name = "pending" id = "delete" value = "{{ $id }}"
        class = "btn btn-primary btn-sm disabled-btn"
        title = "Hold On Order">Delete</button>
@endif

<a href = "<?= route('purchase-requisition-approval.index')?>"
    class = "btn btn-default btn-sm" title = "Back to users Page">Cancel</a>
</div>