Can't access EGS for an older project

I tried to set up the EGS integration for my project now that the store is open to everyone, but I get the following error when I click on the Epic Games Store tab.

Hello!
We’re not yet able to enable older products with our new distribution tools, but we’re actively working towards having that ability. I recommend creating a new one if you’re not currently using your older product for our EOS tools. If you need your existing product enabled, please submit a private case so we can track your request and enable it as soon as we can.