The seller you were bidding with was found to be a crook and eBay cancelled his listings and ended all the bids.( NARU - Not A Registered User)
This is a good thing.
The usual advice on bidding is: calculate the highest amount you are willing to pay. Don't forget to add in the shipping cost.
Bid based on that number.
Bid once.
Bid late.
Bid your maximum.
If you lose, move on. The winner paid too much. Another great item will be along any time. (There are over 140million listings every day on eBay.)