Please take a screenshot of the error message or issue you encountered and send it to our customer service along with a brief description of the problem. We will do our best to fix the issue as soon as possible and assist you in completing your order.
You can also try if these help:
Use a different browser, such as Firefox or Chrome
Clear your browser history and cookies
Try a different payment method and/or another device
Ensure your internet connection is stable
Check that all required order details are correctly filled in