Some iCloud data is not syncing

Some iCloud data is not syncing, or whatever it says, it’s in Spanish. I bought a new iPad for my daughter, and it was setup by the old iPad. Now I have this message that won’t turn off, and it’s driving me insane. What do I have to do, it doesn’t recognize the old code, the old iPad is wiped out and it won’t let me turn on iCloud backup on this new iPad. Should I just toss the iCloud account and create a new one or is there a way to delete all iCloud data?