[Resolved] Blank page when adding new post type

As I explained before, I have done the debugging thing. My wp-config has this in it:

define('WP_DEBUG', FALSE);

define('WPV_LOGGING_STATUS', 'info');
ini_set('log_errors',TRUE);
ini_set('error_reporting', E_ALL);
ini_set('error_log', dirname(__FILE__) . '/error_log.txt');

<strong>Nothing appears in the error console, or in the error log. We have a server error_log and nothing from this has appeared there either. </strong>

I've done various experiments and so I know it's not the plugin, I know it's something to do with our server. I just need some help as to what could be causing it, so we can fix it.

The page isn't posting the variables to the URL:

If I create a post type in my wp-admin I get the URL /wp-admin/admin.php?page=wpcf-edit-type when I press save.
If I do the same thing on discover-wp, I get the URL: /wp-admin/admin.php?page=wpcf-edit-type&wpcf-post-type=tests&wpcf-rewrite=1

Thanks. If you need it, I emailed you info for an admin account on the WP install.

Hi Bruce

Thanks for your post. It can't be a plugin issue as it does the same on clean installs. We've done an experiment today and installed it onto a different server and it works fine. It's clearly some kind of configuration issue with our server. It worked fine last week, but we changed some php config. We changed the file back to its original state but that doesn't seem to have helped.

I'd be interested to know which settings could potentially cause this kind of issue, so we can take a look at the server config.

Thanks
Lewis