Hi,
Please adjust the below code from your plugins > wpdm-archive-page > wpdm-archive-page.php
in line number 607-608
$order = isset($_GET['order']) ? esc_attr($_GET['order']) : 'title';
$order_by = isset($_GET['order_by']) ? esc_attr($_GET['order_by']) : 'asc';
also, you have to adjust plugins > wpdm-archive-page > tpls> archive-page-extended.php
in line number 27-45
for the design appearance,
` <span class=”col-md-6″>
<label for=”order_by”><?php echo __(‘Order By:’,’wpdm-archive-page’); ?></label>
<select name=”order_by” id=”order_by” class=”form-control wpdm-custom-select”>
<option value=”title”><?php echo __(‘Title’,’wpdm-archive-page’); ?></option>
<option value=”date”><?php echo __(‘Publish Date’,’wpdm-archive-page’); ?></option>
<option value=”modified”><?php echo __(‘Last Updated’,’wpdm-archive-page’); ?></option>
<option value=”view_count”><?php echo __(‘View Count’,’wpdm-archive-page’); ?></option>
<option value=”download_count”><?php echo __(‘Download Count’,’wpdm-archive-page’); ?></option>
<option value=”package_size_b”><?php echo __(‘Package Size’,’wpdm-archive-page’); ?></option>
</select>
</span>
<span class=”col-md-6″>
<label for=”order”><?php echo __(‘Order:’,’wpdm-archive-page’); ?></label>
<select name=”order” id=”order” class=”form-control wpdm-custom-select”>
<option value=”ASC”><?php echo __(‘Ascending Order’,’wpdm-archive-page’); ?></option>
<option value=”DESC”><?php echo __(‘Descending Order’,’wpdm-archive-page’); ?></option>
</select>
</span>`
you can also follow this doc for settings the templates,
Template Files
Thanks.