You setup or changed a country in The Raiser's Edge Configuration to use the New Zealand Address block. On the NetCommunity website, you see the Cities and Suburbs field under billing information on a form. You needed to change the country configuration back to a different format, for example United Kingdom. After changing it back, the New Zealand formatting of Cities and Suburbs is still in place on the NetCommunity form. It appears the formatting is stuck.
The application pools for the BBNC Components need to be recycled. If your organization is hosted by Blackbaud, this will happen on a nightly basis, typically around midnight. If your organization hosts NetCommunity, please request your IT department recycle the application pools for the NetCommunity site.