Adding more Projects to Projects page

Newbie here.
Trying to figure out how to get our projects (portfolio) page to show all the projects entered. https://www.acecopperspecialists.com/project/ Currently it is showing 20 out of 21. I added the 21st project yesterday, the direct link is here https://www.acecopperspecialists.com/portfolio/tsawwassen-shopping-center-delta/ But it will not display on our webpage. Can someone help ??