Hi Sun!
Thanks for reaching out to us! I am really sorry you are having issues with the order status.
What kind of issues are you experiencing with the orders? Are they not being processed? Are you using WooCommerce?
What steps did you follow that resulted in the issue happening? Please tell us more about the issue so we can try to reproduce it ourselves. You can attach screenshots and add links for us to see.
Also, when coming back, could you please share with us your system info by following this guide > https://theeventscalendar.com/knowledgebase/sharing-sys-info/
Thanks!
Victor