No, it doesn't. TMZ is working fine for me and most users. Their servers are a bit slow sometimes. There are lots of other things that could be going wrong between your Roku and the servers providing the content. If the channel doesn't get a response in 30 seconds, it gives up, but this seems like a fairly isolated problem affecting a small number of users.
I must admit I don't fully understanding how the Roku box works. I've only had mine since Sept 10th. TMZ is working now. It has been non functioning since Friday for me. I did reboot my router, Roku and uninstall ans reinstall NowhereTV. None of these actions helped. TMZ is the only channel that I get this message while I read others have on other channels. If there is anything to watch for so I can help in making a better product, please let me know. I don't want to bother you.
I'm back in business as of tonight. Thanks!