If you can’t see a project when viewing All Projects, or adding/editing Timesheet Entries & Expenses, first check and make sure you are a member of the project and have the appropriate role.
You can request the Project Manager or Administrator to add you as a member to the Project you wish to see.
In case of time tracking, make sure you are given Timesheet access at the Project Settings level.
Figure: Update Project Member Access via Project Settings
Interested in learning more about Avaza Projects? Here is a guide to Getting Started with Projects.