I get the same error message as AutoWorld54. Looks like Apple took the server offline that was intended to supply the updates.
I was using a 32GB iPhone SE 1st gen until recently. Because my ~20-year-old iTunes library was too big to fit, I never bothered to sync it. I had the misfortune to upgrade iPhones into iOS 17.x (as opposed to installing an update). But now I can't get the music (with playlists) into my newer 512GB iPhone!
iMazing (third party app) is a partial solution because you can copy over your iTunes Music folder — but their support recently confirmed for me that iMazing does not transfer playlists. (Sad because they have an In-Depth Tutorial with a screen shot that clearly shows the playlists intact but either the support document is out of date or intentionally misleading to sell more iMazing licenses!)
I will be happy to be corrected if I am wrong, but I am going to guess there isn't an alternative to iTunes/iPhone sync in the App Store since Apple also has made it essentially impossible to download prior versions of software. (For me, at least, using the App Store under High Sierra results in a dialog offering to download older versions of purchased apps only for nothing to happen. No older *anything* is linked up in the App Store anymore. So my secondary tip is, if you buy something and install it, do not delete the installer after it downloads because you may never see it again!)
Can anybody recommend a third-party app that will also grab playlists?