Google Calendar info lost after deleting Samsung apps

Hi all,

I rooted my G850M and deleted a few apps, including some from Samsung. Then me Google Calendar lost all of the info that I had in the calendar. Here are the apps I deleted: Bubbles, Calendar Storage (Samsung), Live wallpaper picker, My Magazine (Samsung), and S planner (Samsung).

I suspect that deleting the Calendar Storage app might be be the cause, but that seems weird because it's a Samsung app. Any thoughts? Thanks.