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Hello,
I tried to update to WP 4.7 today. The site is still live, and I’m actually able to access the top WP nav bar, but when I try to use the navigation (go to dashboard, etc…), the error below appears:
Fatal error: Cannot redeclare _filter_query_attachment_filenames() (previously declared in /usr/local/pem/vhosts/107625/webspace/httpdocs/vomundinvestments.com/wp-includes/post.php:6204) in /usr/local/pem/vhosts/107625/webspace/httpdocs/vomundinvestments.com/wp-admin/includes/post.php on line 1184.
Judging by other posts, there seems to be conflicts with plugins or themes in 4.7, but my error appears to refer to posts. I’m a designer and WP intermediate, especially outside the dashboard, so any specific help to my error would be appreciated.
I have FTP access.
Thanks