Celebration at the Top Reservations

[iHEARTflorida]

I’ve been keeping an eye on Celebration at the Top reservations for next month, I have multiple dining alerts set up and haven’t received anything. And have been checking the dining reservations on WDW site itself. Today a few dates opened up for Feb and March. But I can’t book any of them. Are they already sold out? I never got any alerts. Or are they perhaps loading them in the system and they aren’t available yet? Do they release at a specific time? This is the error message I get.