Meaningful message when there is lack of permission to view saved filter

For JIRA Calendar, it would be nice if the below error message could be improved to better guide customers that they actually cannot view the saved filter.

Error(s) occurred.

Unable to load events of <user> (a82c0c96-0a43-4f90-a519-f950120e40a0): Unable to read response from https://<domain name>/rest/ical/1.0/ical/search/filter/events.ics?_=1351680360427&searchFilterId=10102&dateFieldName=versiondue&dateFieldName=duedate&dateFieldName=sprint&includeFixVersions=true as iCalendar text. You may want to check the connection to JIRA (<domain name>)