Trade Me crashed this morning, causing the online auction site to extend thousands of affected auctions.
The site began experiencing technical issues around 11am before it was taken down as a precaution at 11.58am.
It was back up and running by 1pm.
Affected auctions that were due to close between 11am and 1.30pm - totalling 38,903 listings - have now been extended by five hours.
"The issue was to do with the way our data is synchronised inside Trade Me,'' a spokesman said.
"We're sorry for any inconvenience to our members.''