Overview:

If you need to temporarily or permanently remove a project or offering from the Investor Portal, you can simply unpublish the project, make any adjustments to the project if needed, and then republish it. 

Step by Step:

From an admin account, go to projects > project lists  > select project > select the entity and class for which you are choosing. Then click the three dots in the right hand side of page and choose edit sales offering > check/uncheck publish offering and click save.