Any active loan that doesn't have a pending or accepted bid appears in the No Bids section. The fact that a loan appears here doesn't necessarily mean that it won't get traded on the exchange. It could be that it was posted too late in the trading day for lenders to respond, that all the bids for it have expired, or that it's not attractive to any lenders today. When this happens, you can:
Wait and see if any bids come in during the next 24 hours.
Edit the loan to make it more attractive.
Cancel the posting.
Get the list of loans with no bids