Catchable fatal error: Argument 1 passed to SpecialCampaigns::getHtmlForCampaign() must be an instance of UploadWizardCampaign, boolean given, called in /usr/share/mediawiki26/extensions-rich-features/UploadWizard/includes/specials/SpecialCampaigns.php on line 48 and defined in /usr/share/mediawiki26/extensions-rich-features/UploadWizard/includes/specials/SpecialCampaigns.php on line 59