Unable to retrieve complete data, please help!

I'm trying to scrape data from the Nexus Mods(https://www.nexusmods.com/) website. I want to scrape information for the first 587 games, the first 20 mods for each game. However, when I actually execute the process, it fails to scrape the complete set of 20 mods for each game. For example, in the game shown in the image, it only retrieved information for 8 mods. Who can told me what should I do?

this is the sitemap
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