If your organization has disabled notification settings for your team, you cannot turn notifications on.
Sign in to your account.
Tap Account.
Tap App Settings.
In the Notifications section, tap Teams.
Below the correct team(s), toggle the Game and Event Notifications button on/off.
After enabling notifications, you will receive a reminder email 48 hours before each event. Team administrators will receive an RSVP summary email 24 hours before the event.