It appears that the XenMedio add-on KH-Vids is running doesn't have its own phrase for its tab. By default, it's Media, but it's been customized to Video Portal for KH-Vids. Media is a phrase in the XenForo core, so this causes other issues, such as here: Spoiler This is what it should be: Spoiler It should be possible to create an individual phrase for the add-on and call it in the appropriate template.