We've some great NEWS for you. You can continue creating daily optional Add-Ons
There was a time period between the prep fee launch and today where creating daily add ons were not available.
Existing daily add ons were not affected at all, only the ability to create new daily Add-Ons.
This has been corrected now and you can continue creating daily optional Add-Ons.
Take a look by going to your Add-ons