Why can I no longer edit or make changes to my Archived Project(s)?

A new feature request was implemented that closes a project that has been archived which results in a user being unable to be edit the project or have time added to the project.

A PMO manager or Project Manager on the project can re-Open the project by navigated to the project and if you hover the Edit icon you will see an option to Open/Un-Archive project.

This will allow the project to have changes made to it and once your done, you can just select to Archive the project again.