Default [Q] Samsung galaxy ring - accidentally deleted calendar storage - apk to reinstall?

Hello.

I idiotically had a slip of my finger when in the application manager of my phone and deleted the Calendar Storage on my device. This none of my calendars will sync, the option for syncing the calendars no longer exist when setting up the sync options for each of my Google (Gmail) Accounts.

Is there any way to reinstall the.apk or something that will allow me to have the calendars syncing again which I am more than dependent upon on a daily basis.

I have a ROOTED - Samsung SPH-M840 (Samsung Galaxy Ring - Virgin Mobile) running JB Android 4.1.2

PLEASE HELP