Please update theme to the latest version then check issue.
Don’t forget to make backup of the site before update.
Here is video tutorial how to update theme: https://www.youtube.com/watch?v=KdWESIIPU1k
The video tutorial is for Legenda theme, but the process is identical.
Also you can download the latest plugins versions at this link http://www.8theme.com/download-plugins/ ,
enter your purchase code of the theme to get the plugins.