Single page does not exist….

Hi, I have used this plugin in a beta site with success. https://wordpress.org/support/topic/stylizing-page-view?replies=9#post-7698056 Now customer want to have it in their live site… The page with 24 days shows up. I have created one for 2014 just to see it works… But single page does not show up. We jsut receive a not found page message. Checked: there are 24 posts in de advent calendar entries menu. they are publiced. I have also tried to see the page using the link by the post list in the backend, but also from this point it says no page found. What else could that be? Thanks! https://wordpress.org/plugins/advent-calender/ oh ja this site: http://stjandedoper-vechtenvenen.nl/advent-calendar/ @bassgang Can you help me here too? Thanks! pages are back. I really donot know what it was. Things I have done – I copied and pasted as plain text the content from functions,php om itself, just to be sure wp had not inserted <p> where I did wanted … also deleted cache many, many times… But I still can not find the option to give the individual posts a post category. CAn you help me on this? Thanks! Hi, I have used this piece of code so now I have an entry text for the individual post : Advent Calender Post Type Customization Advent calender post type customization via the provided “pvb_acal_cpt_params” hook. The following example will extend the advent calender post type with the common post WordPress content / editor box. Youh can use the hook in your themes “functions.php” or in a plugin like function acal_change_post_type_params( $custom_post_type_params ) { $custom_post_type_params[‘supports’] = array( ‘title’, ‘editor’, ‘thumbnail’ ); return $custom_post_type_params; } add_filter( ‘pvb_acal_cpt_params’, ‘acal_change_post_type_params’ ); My question is: How can I gt the option to give this post a wp category? Thanks