Preview isn’t the same as updated page

Hi,
When I translate the page to English, it is showed at the preview page, but not on the updated page: https://www.amsterdamsstudentenorkest.nl/gb/huur-het-aso/
Does anyone know how to fix this. The translate problems started since wordpress updated their version. Other pages, which were translated before, have no problems.

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