Error message when purchasing Askbug Theme

Hi Anspress Team,

I’m a first time customer.

1. I was trying to checkout yesterday when buying the AskBug Theme but I got the following error message as can be seen in the screenshot. May you please assist.
2. May you also provide me with a list of websites that are currently using this theme. I just want to have a better overview of how other buyers have implemented and customized this theme.
3. Is there a limit to how may user accounts I can generate on this theme? My userbase will be 100,000+
4. I did email [email protected] and [email protected] last week with the above two questions (question 2 and question 3) but did not get a reply. Could you perhaps address these in your reply to this thread.

Many Thanks