Any idea why PP Collaborative causes it? We’ve been using it for well over a year and it just started. We need the plugin to control permissions to our site.
Nope. It never shows up in trash.
I am having this same issue as well.
Fatal error: Cannot access private property WP_Query::$query_vars_hash in /home/casc/websites/www.carlalbert.edu/wp-content/plugins/pp-collaborative-editing/admin/filters-nav-menu-query_ppce.php on line 26
