If your event or division schedule isn't available to the public it could be one of the following reasons:
The schedule may of never been published or was accidentally unpublished. Verify the Schedule button is green on the quick publish menu on the Event Details page. You can also verify this under your Event Settings, Schedule section.
Show Schedule During and After Date
A date and time may of been entered to only show the schedule after a certain date and/or time. This should be removed. You can also verify this under your Event Settings, Schedule section.
Unpublished Division Schedule
If only one of your division schedules aren't visible verify the division is active and that the publish schedule wasn't overwritten and hidden. You can also verify this under your Division Settings.
Note: There maybe a small delay on the public side on when this will show.