About Orienko E-Commerce Theme
New version compatible with WordPress 5.0. May be need install Classic Editor plugin. – The fast way is upload overwrite main theme files via FTP account to your server (wp-content/themes/). You also can update theme via Envato Tool Kit plugin with setting purchased code. – Update Lionthemes Helper, WPBakery Page Builder, Revolution Slider if they needed in theme version. You can deactivate, delete and install again from dashboard require, recommended plugins message.