Somehow, a few things have got broken on the server. The one I notice is that Paypal notifications (that somebody paid) are being rejected. Donations still work though!
This means that the Marketplace may be broken. You could pay by making a donation instead and I can then make your advert visible manually.
I suspect some logfile has reached its maximum size…
The person who can fix it is away for a couple of weeks.
Thank you for our patience.