The organization that I originally migrated was deleted and that has messed up all my other projects using collaborate. The first error message is:
uproot_game was the organization that was deleted. On the Plastic SCM, uproot_game is not there and cannot be activated.
When I turn on collaborate for a project, it comes up with this error (about once per second):
I have tried with different unity versions, different organizations, and different versions of the Source Control package and none seem to affect it.