The recent Slider Revolution update has this bug. Send me your email into the private area, I will send you 6.1.3 version. Please upload and activate this plugin version it works correctly. As soon as the new version with the fixed bug has been release you would be able to update.
Please deactivate all the plugins not related to the theme and switch the parent theme, check the issue, if the problem remains, leave the plugins not activated and provide the site admin access to the private area