[stephen]

Hi,

I think your setting in admin panel for Category is Catalog (Anchor). While our config in catalog.xml only for Category (Non-Anchor).

To resolve this issue please go to file: app/design/frontend/sns_codia/default/layout/catalog.xml find and replace the bellow code:

<label>Catalog Category (Anchor)</label>
<reference name="left">
    <remove name="tags_popular" />
</reference>

By:

<label>Catalog Category (Anchor)</label>
<reference name="left">
    <block type="catalog/layer_view" name="catalog.leftnav" before="-" after="catalog.categories" template="catalog/layer/view.phtml" >
    <block type="core/text_list" name="catalog.leftnav.state.renderers" as="state_renderers" />
	</block>
	 <block type="cms/block" name="codia_custom_block_sidebar">
	    <action method="setBlockId"><block_id>codia_custom_block_sidebar</block_id></action>
	</block> 
</reference>

Best Regards!