Hello,
Please download the theme and Core plugin from this page – https://www.8theme.com/downloads and do the update manually https://www.8theme.com/demo/docs/woopress/Theme_Update.html https://www.8theme.com/demo/docs/woopress/Plugins/Plugins_Update
After the update, you will need to wait up to 4 hours while Woocommerce cache will be cleared and messages about outdated files disappear.
Regards