Snap confinement not allowing the blanket snap run properly

There is an app called blanket which I snapped recently. But, that app when run, is showing

/snap/blanket/current/usr/share/blanket/blanket/sound.py:6: PyGIWarning: GstPlay was imported without specifying a version first. Use gi.require_version('GstPlay', '1.0') before import to ensure that the right version gets loaded.
  from gi.repository.GstPlay import Play as GStreamerPlay
/dev/shm/jack_db-1000/__db.001: No such file or directory
/dev/shm/jack_db-1000/__db.001: No such file or directory
/dev/shm/jack_db-1000/__db.001: No such file or directory
/dev/shm/jack_db-1000/__db.001: No such file or directory
/dev/shm/jack_db-1000/__db.001: No such file or directory
/dev/shm/jack_db-1000/__db.001: No such file or directory
/dev/shm/jack_db-1000/__db.001: No such file or directory
/dev/shm/jack_db-1000/__db.001: No such file or directory
/dev/shm/jack_db-1000/__db.001: No such file or directory

jack plug, private shared-memory nothing has helped. snappy-debug is also not helping. Which plug should I connect for it to work properly?

Fixed by adding pulseaudio plug