Hello, @Bas Kling,
I have checked your site and found no issue, it is working just perfectly. I have recorded a video for you here is the video link: https://streamable.com/w8iocs Please watch it complete for a better reference and then check back to your site after clearing the browser cache.
Regards 8Themes Team.
One standard license is valid only for 1 project. Running multiple projects on a single license is a copyright violation.