Hello,
I would be happy to help. :-)​
If you can, within Anki go to your top menu bar. From there, click Anki - About Anki and check your version number.
You’ll want to make sure that you’re on 25.09. If it’s any other version, you’ll want to upgrade since older versions often run into little issues with add-ons.
You can always download the latest version of Anki at the official Anki website: https://apps.ankiweb.net/
You’ll want to make sure that you’ve taken care of all the necessary setup steps, in order to be able to access decks on AnkiHub. From within AnkiHub.net, you should be able to click on ‘Tasks’ here and there are step-by-step instructions, with tutorials, for everything in order to get squared away:
You can also access the course directly via this URL: Official Course | Getting Started with the AnKing Step Deck
Please let me know if that answers your question, and if there’s anything else I can help with. 