Are you using the Avada Theme for your WordPress website? Are you having an issue updating the Premium Bundled Plugins, such as Convert Plus and Revolution Slider? These Plugins do not include individual licenses so they must be updated through the Avada interface in the Dashboard menu.
It is very important, for your WordPress website’s security, to always keep all of the Plugins and Theme files and core WordPress software updated.
Simply navigate to Dashboard > Avada > Plugins.
Hover over each of your Installed Plugins and if an Update Button appears, click it and wait for the Premium Plugin to update itself. Be sure not to click away from any update while it is in progress.
Here’s a link to more information that talks more about updating the Premium Plugins.