Just installed NextGen's latest version 1.8.3 and activated it, and got this .....
Fatal error: Call to a member function add_rewrite_tag() on a non-object in /home/content/78/8505378/html/wp-includes/taxonomy.php on line 333
WP's functions don't work at all, can't deactivate any plugins to see what's conflicting to cause this. Funny, Ata's functions appear to be working, but the rest of WP is fubar'ed.
Any ideas on what could be causing this?
PM me for URL, don't want to display it publicly.