Blog Posting or updates - Not Possible after upgrade?

Evening,

I’ve run into a small problem this evening. I’ve just gone to update my blog with a rather important promo post and it’s giving the following error. I’ve also provided the diags from my instalation. I’ve tried updating an existing post and adding a new one and I get the error.

I’d really appreciate your help as I was hoping to get this out there for tomorrow.

Thanks as always.

Regards

Rob

Error Message:

Fatal error: Call to a member function return_instance() on a non-object in /homepages/30/d205476839/htdocs/colconquerors/colconquerors2011/perch/core/lib/api/PerchAPI_Form.class.php on line 423

Perch Diags

Perch: 2.8.18, PHP: 5.5.30, MySQL: mysqlnd 5.0.11-dev - 20120503 - $Id: 15d5c781cfcad91193dceae1d2cdd127674ddb3e $, with PDO Server OS: Linux, cgi-fcgi Installed apps: content (2.8.18), assets (2.8.18), categories (2.8.18), perch_blog (4.5.2), perch_mailchimp (2.0.1) App runtimes: <?php $apps_list = array( 'content', 'categories', 'perch_blog', 'perch_mailchimp', ); ?> PERCH_LOGINPATH: /perch PERCH_PATH: /homepages/30/d205476839/htdocs/colconquerors/colconquerors2011/perch PERCH_CORE: /homepages/30/d205476839/htdocs/colconquerors/colconquerors2011/perch/core PERCH_RESFILEPATH: /homepages/30/d205476839/htdocs/colconquerors/colconquerors2011/perch/resources Image manipulation: GD PHP limits: Max upload 40M, Max POST 8M, Memory: 120M, Total max file upload: 8M Resource folder writeable: Yes HTTP_HOST: www.colconquerors.com DOCUMENT_ROOT: /kunden/homepages/30/d205476839/htdocs/colconquerors/colconquerors2011 REQUEST_URI: /perch/core/settings/diagnostics/ SCRIPT_NAME: /perch/core/settings/diagnostics/index.php