Get your projects back from your "Trash" folder if they were deleted by mistake.
How to recover your deleted project:
Go to the upper corner menu and select "Settings". Choose "Trash" from the left menu:
A list of deleted projects will be displayed and you will see who deleted the project and when.
To restore the project click on "Recover" and the entire project, along with the tasks and associated time will be re-established.
To permanently delete a project click on the bin icon.
Important: Only projects can be recovered, keep in mind that deleting individual tasks is still a permanent action.