You can access your archived projects from the main screen by clicking the Archived tab in your team-project screen (see the image below).
To restore a project, you have to be the one who archived it. This will allow you to click the arrow in the right upper corner of the project card, and entirely restore the project. After selecting this, the project will appear on the main screen with the rest of the projects.
To learn more about how to access archived projects in SciNote watch our video tutorial.