lollypop error

mozammel@mozammel-Inspiron-5447:~$ lollypop
/usr/lib/python3/dist-packages/gi/module.py:178: Warning: g_array_append_vals: assertion 'array' failed
  g_type = info.get_g_type()
/usr/lib/python3/dist-packages/gi/module.py:178: Warning: g_hash_table_lookup: assertion 'hash_table != NULL' failed
  g_type = info.get_g_type()
/usr/lib/python3/dist-packages/gi/module.py:178: Warning: g_hash_table_insert_internal: assertion 'hash_table != NULL' failed
  g_type = info.get_g_type()