Enabling the MNN Project generates this error:

FieldException: Attempt to create an instance of a field group_audience that doesn't exist or is currently inactive. in field_create_instance() (line 476 of /srv/bindings/dc8fbdbdceb04589948efc26f9d08966/code/modules/field/field.crud.inc)

The documentation on cm_project notes "If you're upgrading from OG 7.x-1, you'll notice the machine name is no longer group_audience, it's now group_group." I'm assuming this is the issue.