How do I remove a GroupShare project from "in progress" in my projects list?

Hi!

One of my longstanding clients started using GroupShare today. After I had delivered the project by checking in the file and changing the phase to review, I tried to remove the project from "in progress" in my own local projects list (I am not talking about "their" lists on the GroupShare server). I then got the error message "You cannot complete this project because you do not have required permission".

How do I solve this? The client had no idea. I really need to move the project from "in progress" to the list of completed projects, as it will be very difficult for me otherwise to keep track of the projects I am currently working on and the projects that I have already completed (which I must keep track of for billing and audit purposes).

I would be very grateful for your help!

Kind regards,
Johanna