Bug: Gjn Marketplace: Coupon dissapeared when deleting a sell order

I wanted to sell some of my coupons. Sometimes they get underbidden. So i wanted to adjust the price of my Sd.Kfz.234/1. For that i have to delete my sell order, and create a new one for the coupon.

So i deleted the sell order, and then Applikation did a load and not stopped. i force reloded page (crtl f5) and got an error message. The coupon for the Sd.Kfz.234/1 was gone. Its not in the Orders anymore, and not in my inventory.
This happens not the first time. But usually it comes back after some time. But now i waited more then a day, force reload doesnt help, new login with authentication also does not help.
And if thats helpful: It happend with the new Version of the Market. I now switched back to old version, because reasons.

pls give me back my Sd.Kfz.234/1 coupon.
(ah and it would be nice, if price could be adjusted within the order^^ but thats low prio, pls give me my coupon back)

I think you should contact support.