Cannot delete Collaboration Room

Hi Experts,

I need to delete an existing Collaboration room in the portal.

What I know is that I need to be either the owner or an administrator of the room to delete it - the problem is that I am not.

The owner of the room cannot also delete it because once the room is accessed, we get an error saying that the room does not exist anymore.

But it is still there in the list.

I have also already tried to clear cache but it did not help.

Please advise.

Thanks,

Vey