i open the page change draft then on the bottom is a button change order when i click on it i get a screen that says there is a problem with this page.
Thanks, that helped.
This is easy to consistently duplicate. Submit an existing draft order without making any changes, and it always brings up the error page.
halvegare, this isn't really a serious problem for you. If you do make a change to the order, you should be able to submit ok.