Drupal 7. WYSIWYG module, CKEditor as chosen library, Video Filter module.
When I manually type in the video filter code, it works. When I add the video filter button to the toolbar for my CKEditor profile, it works. But when I go to enter content and I click the video filter button in the CKEditor toolbar, it opens a new window and attempts to access a page that doesn't exist on my site, giving me the error
The requested page "/video_filter/dashboard/wysiwyg_ckeditor" could not be found. Googling the error is unhelpful.