Answered ticket does not generate notification email to Administrator

That's strange to me. Admin should receive notification when users answer the ticket. Maybe something special on your site causing this error

You can submit a support ticket sending us:
- Super admin account of the site
- Link to submit ticket page
- A user account (if available) which can be used to add comment to ticket and see this error
- Tell me the category which I can submit ticket to and see this error
- Tell me the email which should receive notification

I will check to see what's wrong and get it sorted for you

Regards,

Tuan