Welcome to the community and thanks for posting. I apologise for the PL59 error code you've been receiving. It's not nice when the box just freezes on you especially as it has only just been swapped.
I've managed to locate your account to run a test on the Samsung box but it's not showing any obvious faults. I'm assuming you've done a reboot? If the issue persists after that then I'll need to get an engineer out to take a look.
I'll now send you a private message to discuss further. To view this click on the purple envelope on the top right.