Hello @tkh2015,
Sorry to hear you were having a problem. However, when I checked your site, for both events and business listings, both urls contained the city, which reflect the setting you have at GD > Permalinks.
Please take a look at the settings and let us know if you run into listings that aren’t behaving according to those settings.
It could be that you visited WP > Settings > Permalinks and re-saved your permalinks? That may have put things back into shape for you. In all likelihood some or other plugin triggered your permalinks to regenerate, or perhaps one or two were not processed correctly.
If that happens again, the first thing to try is a visit to WP > Settings > Permalinks. Just save them again and it should be back in shape.
In some cases the permalinks get bent out of shape because re-saving them on a site with lots of posts does require resources; if the process runs out of resources, the process can fail, and then there are broken links.
If it happens again send us the URL so we can take a look.
Thanks