No Audio When Accessing Over HTTP

When I click play on an item I get this error.

** (mopidy:26977): WARNING **: Command line `dbus-launch --autolaunch=d10f4a970200cd6b70a1a023538a1f18 --binary-syntax --close-stderr' exite                        d with non-zero exit status 1: Autolaunch error: X11 initialization failed.\n

** (mopidy:26977): WARNING **: Command line `dbus-launch --autolaunch=d10f4a970200cd6b70a1a023538a1f18 --binary-syntax --close-stderr' exite                        d with non-zero exit status 1: Autolaunch error: X11 initialization failed.\n

** (mopidy:26977): WARNING **: Command line `dbus-launch --autolaunch=d10f4a970200cd6b70a1a023538a1f18 --binary-syntax --close-stderr' exite                        d with non-zero exit status 1: Autolaunch error: X11 initialization failed.\n

** (mopidy:26977): WARNING **: Command line `dbus-launch --autolaunch=d10f4a970200cd6b70a1a023538a1f18 --binary-syntax --close-stderr' exite                        d with non-zero exit status 1: Autolaunch error: X11 initialization failed.\n

** (mopidy:26977): WARNING **: Command line `dbus-launch --autolaunch=d10f4a970200cd6b70a1a023538a1f18 --binary-syntax --close-stderr' exite                        d with non-zero exit status 1: Autolaunch error: X11 initialization failed.\n
AL lib: alsa_open_playback: Could not open playback device 'default': No such file or directory
Cannot connect to server socket err = No such file or directory
Cannot connect to server request channel
jack server is not running or cannot be started
AL lib: alsa_open_playback: Could not open playback device 'default': No such file or directory
Cannot connect to server socket err = No such file or directory
Cannot connect to server request channel
jack server is not running or cannot be started
AL lib: alsa_open_playback: Could not open playback device 'default': No such file or directory
Cannot connect to server socket err = No such file or directory
Cannot connect to server request channel
jack server is not running or cannot be started
ERROR    GStreamer error: state change failed and some element failed to post a proper error message with the reason for the failure. Debug                         message: gstplaysink.c(1899): gen_audio_chain (): /GstPlayBin2:playbin20/GstPlaySink:playsink0

what system do you use?