[Theme Horse Support Team]

Hi Johann,

You can disable the notification error issue by going to dashboard-> appearance-> theme options -> and scroll to the bottom of the page. You will find Admin Notices and Updates Options where you can disable version and theme horse notification by setting check options.

For more reference view this below screenshot.
http://www.awesomescreenshot.com/0e85dvld90

Note: We recommended you to update the theme for future security, deprecated notices and many more.

Thank you!