If you want to use the membership features of your Donorfy you need to

• Switch on the membership feature - to do this select configuration under settings and search for Membership - set Show Membership Feature to Yes and press Update

• Next allow people to access the membership feature, administrators will automatically have access, for standard users click on users under settings click on the people you want to allow access to membership and set 'Allow access to Membership' to Yes press Save Changes

Please note Membership is a Professional feature.