Can't add 2 domains. (One is redirected to another)

Can’t 2 domains. I was deleting and readding 2 domains until I faced an issue.

Refer to https://cfl.re/3VUQyyL for assistance. The zone you are trying to upgrade is marked as Do Not Upgrade. (Code: 1315)

Then I realised, this could be a billing issue? Which had 5$ pending.
Which got paid, but still remaining the same.

Questions about billing will need to be resolved by the Customer Support team and cannot be resolved on the Community. You can open a Billing ticket here, https://dash.cloudflare.com/?to=/:account/support