Thank you for contacting Styled Themes Support.
It seems like you are using an outdated version of the theme, so we request you to update the theme to the latest version and let us know if the problem still exists?
Note: Please take a backup of your site before proceeding. Normally we use duplicator plugin to make a backup. https://wordpress.org/plugins/duplicator/
Here is the video tutorials how to use duplicator and save it to your local computer https://www.youtube.com/watch?v=VdvOGV2eIjE