Pandora Internal Error Code 0 in 1.4.1
Within the last couple of weeks, this error comes up when I un/love or ban a song. I can't seem to actually love songs anymore, but banning does skip to the next in queue.
Running premium subscription in xfce 4.12 in ArchLinux x64, so mostly stable / bleeding edge deps. However gtk3 is at stable 3.22.30.

Running premium subscription in xfce 4.12 in ArchLinux x64, so mostly stable / bleeding edge deps. However gtk3 is at stable 3.22.30.
This has no relation to your issue (probably) but I just want to say your system is broken. You can't do partial updates on Archlinux.
Well, you can actually, of course mileage may vary depending on the source and knowledge of person doing it. I just created a package based off the stable version of gtk3 instead of unstable. There is a bug in gtk3 unstable that doesn't seem like it will be fixed anytime soon. So, if I install gtk3.24 (unstable) it causes visual glitches with xfce4 panels when not using compositing. The stable version works fine for my needs.
Getting back on topic, for kicks and grins went to unstable latest version in Arch of gtk3.24, restarted, and the error is still happening in pithos. Also reproducible on a laptop (same architecture, tried with 3.22 and 3.24 also).
3.24 isn't unstable, it is the latest stable version.
Hmm, some pages aren't updated then, still references 3.22 as stable: https://www.gtk.org/download/linux.php
@JSkier21 your gtk version isn't remotely relevant in this case. That error is returned directly from Pandora. It's problem on their side.
Pithos uses the JSON API. At this point the JSON API would probably be considered "legacy". I'd be willing to bet that Pandora is dedicating less computer power/content servers and even less man power to maintaining the JSON API in favor of the newer REST API.
Hmm, some pages aren't updated then, still references 3.22 as stable: gtk.org/download/linux.php
gtk.org is a largely unmaintained site.
Having the same issues on Archlinux, error code 0. v1.4.1