6-year domain renewals failed,but payment has been successfully made

Did you used Credit card for this? Might be the data at Cloudflare is old since credit card is issued for up to 5 years or so.
You might need to double-check and update your billing. Otherwise, have you used some other payment method?

If you already have a ticket, Support will respond to you on that ticket. Questions about billing will need to be resolved by the Customer Support team and cannot be resolved on the Community.