Issue with EC 2021 T-shirt purchase [SOLVED]

We recently informed you that we were experiencing some issues in regards to proceeding during checkout.
This issue has been solved and orders are now able to be placed.
We apologize for the inconvenience caused and we thank you again for your patience.

The EC 2021 T-shirts are available through the EC 2021 Online Store website.

(July 17 10:30 JST)