Anyway please try following:
1.) Open COL Reminder
2.) Open Settings
3.) Open Notification Settings
4.) Disable "Group Notifications" and wait a few seconds
5.) Enable "Group Notifications"
If you have it currently disabled, please enable it, wait a few seconds and enable it again.
This will remove all reminders for the system alarm queue and re-add it.
Let me know if you still get the strange empty reminder.