Josie Peterson

Hello @sacconi,

Can you try using this:

<?php
echo '<form><input type="button" value="< Torna alla lista" onClick="javascript:history.go(-1)">','<input type="button" value="< Torna alla lista" onClick="javascript:history.go(-1)"></form>' ;
 ?>

Hello @bellinzonialberto2, the issue primarily seems specifically related to caching. The users are getting an outdated page because the older version of your website is cached in their browsers. You can try clearing the cache of your website(using any of the caching plugins like this: https://www.ads-software.com/plugins/wp-fastest-cache/) and check if the problem resolves.

The primary reason I suspect behind this problem can be that your WordPress account has insufficient permission to remove/delete posts. 

If that’s not the case, you mentioned that you deactivated all the plugins, so that cannot be the reason. However, a custom code or theme also can make this happen. Kindly check if any newly updated code or theme is causing the problem. 

The sitemap.xml page you mentioned, is not to be supposed to remove from your website. It is essential for indexing and ranking pages in search engines. You should not remove that. 

The screenshot you attached at last, shows 2 links: one for your website home page & other for the “/Cart” page, which does not exist now. That’s the only page that you can delete.