Hello reenajacobs and codente ,
I have the same trouble. I can not add any page, any image, any menu voice. Have you find a solution?
My wordpress is running the 4.4.2 version.
I have tried to fix by deactivating all plugins and reactivating them one by one, without success. (my plug in are: Crafty Social Buttons, Contact Form 7 , Slider Revolution, WP Google Maps , WP-Optimize )
I have also deleted the wp-admin & wp-includes folders and manually uploaded the latest version of WordPress by ftp just like you. It has not been useful.
The debug file reports that:
[07-Mar-2016 17:07:46 Europe/Stockholm] running wpo_cron_deactivate()
[07-Mar-2016 17:07:48 Europe/Stockholm] WordPress errore sul database Duplicate entry ‘0’ for key ‘PRIMARY’ per la query INSERT INTO wp_posts (post_author, post_date, post_date_gmt, post_content, post_content_filtered, post_title, post_excerpt, post_status, post_type, comment_status, ping_status, post_password, post_name, to_ping, pinged, post_modified, post_modified_gmt, post_parent, menu_order, post_mime_type, guid) VALUES (1, ‘2016-03-07 17:07:48’, ‘0000-00-00 00:00:00’, ”, ”, ‘Bozza automatica’, ”, ‘auto-draft’, ‘post’, ‘open’, ‘open’, ”, ”, ”, ”, ‘2016-03-07 17:07:48’, ‘0000-00-00 00:00:00’, 0, 0, ”, ”) fatta da get_default_post_to_edit, wp_insert_post
[07-Mar-2016 17:07:48 Europe/Stockholm] PHP Warning: Creating default object from empty value in /public_html/wp-admin/includes/post.php on line 632
[07-Mar-2016 17:07:54 Europe/Stockholm] running wpo_cron_deactivate()
[07-Mar-2016 17:07:56 Europe/Stockholm] WordPress errore sul database Duplicate entry ‘0’ for key ‘PRIMARY’ per la query INSERT INTO wp_posts (post_author, post_date, post_date_gmt, post_content, post_content_filtered, post_title, post_excerpt, post_status, post_type, comment_status, ping_status, post_password, post_name, to_ping, pinged, post_modified, post_modified_gmt, post_parent, menu_order, post_mime_type, guid) VALUES (1, ‘2016-03-07 17:07:56’, ‘0000-00-00 00:00:00’, ”, ”, ‘Bozza automatica’, ”, ‘auto-draft’, ‘page’, ‘closed’, ‘closed’, ”, ”, ”, ”, ‘2016-03-07 17:07:56’, ‘0000-00-00 00:00:00’, 0, 0, ”, ”) fatta da get_default_post_to_edit, wp_insert_post
[07-Mar-2016 17:07:56 Europe/Stockholm] PHP Warning: Creating default object from empty value in /public_html/wp-admin/includes/post.php on line 632
I also must tell you that I have got this trouble since the website is online ( about 10 days)
I am not familiar with php and database at all. Would you please help me? I would appreciate it very much. Thank you very much indeed.