The website you are trying to import() is controlled by JavaScript. Thus, import() functions from google sheets won't be able to fetch the data for you. You may not be able to notice it at first but when landed on the 'I Agree' webpage, the buttons will not be clickable when you turn JavaScript to 'Block'(Click lock icon beside address bar->Go to site settings->Set JavaScript to 'Block' and reload website using incognito for this case) for that website.
I suggest finding another source of data that gives the same data.
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