Page won’t scroll after age gate

Hi, relative newbie to this so hoping it’s an obvious fix – when new users go on to our website (or I access via Incognito browser), after passing the age gate I am unable to scroll. A quick refresh fixes this but it’s not ideal for new users. Is there a simple setting I can adjust to fix this, or force a refresh after the age gate?

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

 

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