Facing some difficult issues in WP admin panel after updating to 3.5.2
1. Couldn't switch to another theme.
2. Couldn't activate/deactivate any existing plugins but can upload a new one and can delete/update old one.
3. Not showing any old posts, pages and media but all are working nicely in the front end.
4. Couldn't add new posts/pages,
Showing a Warning: Creating default object from empty value in /public_html/wp-admin/includes/post.php on line 472
Any Idea? Please help.
Thanks in advance!