I get this error too: Start Pithos, first song plays. When the first song ends, the GUI selected song moves down through the other 3 loaded songs and displays 'Error: Resource not found' after each one. Then it loads 4 more and moves down through those with the same error message. At the end of those, it displays an error dialog box: 'Error Resource not found.' It has been doing this consistently all week. My Network Proxy Preferences is set to Automatic, so I'm not sure if I have any active or not. I haven't done anything to enable them. sudo pithos --verbose works fine. Here's my output from pithos --verbose: DEBUG - pithos::677 - logging enabled DEBUG - plugin:enable:33 - Enabling module notification_icon DEBUG - plugin:enable:33 - Enabling module song_notify DEBUG - __init__:connect:59 - libpiano: Connecting DEBUG - __init__:connect:61 - libpiano: Get Stations DEBUG - __init__:connect:64 - libpiano: found 28 stations DEBUG - pithos:pandora_ready:297 - Pandora connected DEBUG - pithos:pandora_ready:307 - Restoring saved station: id = 14972024121924664 DEBUG - pithos:station_changed:457 - Selecting station 14972024121924664; total = 29 DEBUG - __init__:get_playlist:109 - libpiano: Get Playlist DEBUG - pithos:song_changed:333 - Starting song: index = 0 DEBUG - pithos:art_callback:400 - Downloaded album art for 0 DEBUG - pithos:art_callback:400 - Downloaded album art for 1 DEBUG - pithos:art_callback:400 - Downloaded album art for 2 DEBUG - pithos:art_callback:400 - Downloaded album art for 3 DEBUG - pithos:song_changed:333 - Starting song: index = 1 ERROR - pithos:on_message:481 - Gstreamer error: Resource not found., gstsouphttpsrc.c(913): gst_soup_http_src_finished_cb (): /GstPlayBin:player/GstSoupHTTPSrc:source: libsoup status code 3 DEBUG - pithos:song_changed:333 - Starting song: index = 2 ERROR - pithos:on_message:481 - Gstreamer error: Resource not found., gstsouphttpsrc.c(913): gst_soup_http_src_finished_cb (): /GstPlayBin:player/GstSoupHTTPSrc:source: libsoup status code 3 DEBUG - pithos:song_changed:333 - Starting song: index = 3 DEBUG - __init__:get_playlist:109 - libpiano: Get Playlist ERROR - pithos:on_message:481 - Gstreamer error: Resource not found., gstsouphttpsrc.c(913): gst_soup_http_src_finished_cb (): /GstPlayBin:player/GstSoupHTTPSrc:source: libsoup status code 3 DEBUG - pithos:song_changed:333 - Starting song: index = 4 DEBUG - pithos:art_callback:400 - Downloaded album art for 4 ERROR - pithos:on_message:481 - Gstreamer error: Resource not found., gstsouphttpsrc.c(913): gst_soup_http_src_finished_cb (): /GstPlayBin:player/GstSoupHTTPSrc:source: libsoup status code 3 DEBUG - pithos:song_changed:333 - Starting song: index = 5 DEBUG - pithos:art_callback:400 - Downloaded album art for 5 DEBUG - pithos:art_callback:400 - Downloaded album art for 6 ERROR - pithos:on_message:481 - Gstreamer error: Resource not found., gstsouphttpsrc.c(913): gst_soup_http_src_finished_cb (): /GstPlayBin:player/GstSoupHTTPSrc:source: libsoup status code 3 DEBUG - pithos:song_changed:333 - Starting song: index = 6 DEBUG - pithos:art_callback:400 - Downloaded album art for 7 ERROR - pithos:on_message:481 - Gstreamer error: Resource not found., gstsouphttpsrc.c(913): gst_soup_http_src_finished_cb (): /GstPlayBin:player/GstSoupHTTPSrc:source: libsoup status code 3 DEBUG - pithos:song_changed:333 - Starting song: index = 7 WARNING - pithos:get_playlist:392 - Too many gstreamer errors. Not retrying ERROR - pithos:on_message:481 - Gstreamer error: Resource not found., gstsouphttpsrc.c(913): gst_soup_http_src_finished_cb (): /GstPlayBin:player/GstSoupHTTPSrc:source: libsoup status code 3 Here's my output for sudo pithos --verbose: DEBUG - pithos::677 - logging enabled DEBUG - plugin:enable:33 - Enabling module notification_icon DEBUG - plugin:enable:33 - Enabling module song_notify DEBUG - __init__:connect:59 - libpiano: Connecting DEBUG - __init__:connect:61 - libpiano: Get Stations DEBUG - __init__:connect:64 - libpiano: found 28 stations DEBUG - pithos:pandora_ready:297 - Pandora connected DEBUG - pithos:pandora_ready:307 - Restoring saved station: id = 14972024121924664 DEBUG - pithos:station_changed:457 - Selecting station 14972024121924664; total = 29 DEBUG - __init__:get_playlist:109 - libpiano: Get Playlist DEBUG - pithos:song_changed:333 - Starting song: index = 0 DEBUG - pithos:art_callback:400 - Downloaded album art for 0 DEBUG - pithos:art_callback:400 - Downloaded album art for 1 DEBUG - pithos:art_callback:400 - Downloaded album art for 2 DEBUG - pithos:art_callback:400 - Downloaded album art for 3 DEBUG - pithos:song_changed:333 - Starting song: index = 1