(URL as per launched page: http://www.skillnet.officetimer.com/Employee/AccountEmployeeTimeEntryWeekViewReadOnly.aspx?Type=EmployeeManager&AccountEmployeeId=135&StartDate=6/19/2017&TimesheetPeriodType=Weekly)
As an OT Admin, you can temporarily change the password of Sunil Menon to debug the issue and then ask him to reset it.