Sometimes, you might see an error that relates to permissions when you're trying to add Facebook to your dlvr.it account. This process inherently wants to gain access to certain permissions within your account. Because those permissions are required for us to operate your account properly, declining those permissions results in an error. This is the first step to fixing any permissions errors.
If, however, you are granting permissions, and we are still coming back with a permissions error, this may be related to the page role you are assigned within Facebook. In order for us to post on behalf of a Facebook page, profile, or group, your page role must be at a certain level, usually Admin. For more information about page roles, check out this link to Facebook's page role info.