Accidently deleted the device calender? Can I recover or add new?

My device is an Xperia Z2 D6503 running Android 4.4.4. I was using [iCal Import/Export CalDAV](https://play.google.com/store/apps/details?id=tk.drlue.icalimportexport) to import .ical files into my device calendar. Using this same app, I accidently deleted my device calendar. I cannot see the 'device calendar' anymore in the list of calendars in my phone's default calendar app. Can I recover this calendar or add a new device calendar? I am guessing iCal app has deleted com.android.calender.