edit

app/shop/database/sell_order.php

@@ -674,6 +674,7 @@ return array
             'default'   => '',
             'match'     => 'is_numeric',
             'desc'      => '',
+            'search'    => 'date',
             'list'      => '"{fadate}" > 0 ? date("Y-m-d H:i:s", {fadate}) : "-"',
             'list_order' => 8,
         ),