Hello @Beijing Mac
Thank you for reaching out on the community and telling us about your issue. I do apologize for the issue you're having. That is interesting you should be able to close the account as one of the options. I'm wondering here if you're able to potentially send us a screenshot of the message you're getting as well. I'll leave instructions down below on how to do so.
https://community.quicken.com/discussion/7867159/faq-how-do-i-post-a-screenshot-in-the-community-from-windows#latest
Once you get the chance let us see and we'll take a look.
Thanks,
Quicken Francisco