Anki and the Anking team are not related (we are very thankful for the add-ons, decks, and marketing for Anki), you should report here instead: Issues · AnKing-VIP/exam-notifier · GitHub
it could be the problem as well, you should try the official version to see if the issue persists
You are welcome to continue using your distro’s version of Anki if you prefer, but if you run into any issues, you will need to report them to your distribution’s package maintainers.