Single product page issue

Hello, having issues with my site. The single product page displays the same image for all related products. How do I fix this?
Link: [redacted]

• This topic was modified 3 years, 5 months ago by tobifjellner (Tor-Bjorn “Tobi” Fjellner). Reason: Removed reduntant links

The page I need help with: [log in to see the link]