To add to my earlier comment – prior to trying to roll back the version, I was able to upload image files to the gallery, but could not insert them in a page or post. I received a message similar to Osvaldas: Fatal error: Call to undefined function get_current_screen() in /var/www/education/wp-content/plugins/event-organiser/includes/event-organiser-register.php on line 524.
I also cannot upload files after updating the plugin. I tried to roll back to the previous version of NextGen following the developer’s instructions (because it does conflict with the Event Organizer plugin) and crashed the site. The crash message was similar to the one above: Fatal error: Call to undefined function eventorganiser_is_event_query() in /var/www/education/wp-content/plugins/event-organiser-pro/includes/user-bookings.php on line 144. Luckily this is on the development server, but we will need to roll back to the previous version of NextGen on the production server due to the conflicts with Event Organizer. I’d appreciate any help you can provide.
