Activities Setting

In activity settings for the sandbox and one of my schools I try to add Activity Type - it give me a error saying “You do not have access for this action” but in permissions I do. Is this a error in server file permissions?
In the sandbox although Activities module is installed it give the error - “Gibbons have flown the coup”. one of the schools is trying it out so does sandbox have access to Activities?

@ross are you OK to help Brian with this? Thanks!