enabling calendar access to apps on iphone
I have an app that give the message "This app does not have access to your calendars: You can enable access in Privacy Settings" When I go to setting to enable there are no apps listed in Calendars to choose.
I have re set all settings.
I have been able to access calendars across mail etc previously. Running IOS iOS 12.1.3 on an iphone SE
iPhone SE, 12