Hello
Your request is a litle bit unclear for us.
If you mean update process for the plugin you may download latest version from https://www.8theme.com/download-plugins/ and then upload it on your ftp into the wp-content/plugins/ with overwriting.
In case you are expiriencing issues with backend work process using VC please provide us with wp-admin credentials to let us check the issue and send screenshots or link to us to the page where issue can be noticed.
With best regards
Brian Johnson