[Solved] Forum broken since last update
Our forum here https://gordian-knot.eu/community is broken. Although we have several forums and categories, they all disappeared. They are still visible in the settings but not in the actual forum page.
Your website is probably infected. If you're not login and click on menus or links it refers you to some spammy website. Please install some security antivirus plugin and scan it. Or contact to your hosting service and let them scan your website.
Thank you. It was indeed infected.