Looks like the creator only put in enough for a couple days worth:

    day = Math.floor((new Date() - new Date("Nov 1 2022")) / (1000 * 60 * 60 * 24));

    games = ["NIEDSSLNINARAHIEAETKECGIPEILTZ", "TBERAOTEIBDNATIOEGGUIGUWUNHEOS", "NIEDSSLNINARAHIEAETKECGIPEILTZ", "TBERAOTEIBDNATIOEGGUIGUWUNHEOS"];

    letters = games[day];

    lettersarray = letters.split("");