Could not edit Calendar

Description

When I try to edit the calendar https://helpdesk.globallogic.com/secure/ListVSLACalendarsAction!editCalendar.jspa?calendarId=6 it throws a 404 dead link error.
When I try to configure I could not do anything inside and when I click save it throws a 500 error see attached error details.

Environment

Liunx, JIRA 6.3.8 Version, Crome/IE/Mozilla

Status

Assignee

Unassigned

Reporter

Ramesh Udari

Type Of Support

Maintenance

Additional contacts

None

Affects versions

7.0.3.1

Priority

Major
Configure