I just set my country to Canada and I can see "Uncork 2021's Cheered and Revered" on the home page. When I click it, the page I am taken to appears to be the Australian version ("au" in the URL and the Australian flag to show the country). If I click the flag and choose Canada as my region, the page appears to be displayed correctly and I can click the books to see them.
That suggests that Kobo has your IP address as coming from the Catalan region. You should contact them and tell them there is a problem.
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