AL lib: (EE) ALCplaybackAlsa_open: Could not open playback device 'default': Device or resource busy

[railsfans]

i use ubuntu 20.04 system and download qvh and run command on it, i use my iphone6s device connect then get error log below:
test@ubuntu:~/Downloads/bin/linux$ sudo ./qvh devices
{"devices":[{"deviceName":"iPhone","screen_mirroring_enabled":true,"udid":"4e50da4c5b930e51d8a37f8ec407864aea9d800c","usb_device_info":"vid=05ac,pid=12a8,bus=3,addr=12"}]}

test@ubuntu:~/Downloads/bin/linux$ sudo ./qvh gstreamer
{"level":"info","msg":"Starting Gstreamer..","time":"2022-08-22T01:38:30-07:00"}
AL lib: (EE) ALCplaybackAlsa_open: Could not open playback device 'default': Device or resource busy
{"level":"info","msg":"Gstreamer is running!","time":"2022-08-22T01:38:30-07:00"}
{"level":"info","msg":"no udid specified, using '4e50da4c5b930e51d8a37f8ec407864aea9d800c'","time":"2022-08-22T01:38:30-07:00"}
{"level":"info","msg":"Stopping Gstreamer..","time":"2022-08-22T01:38:31-07:00"}
{"error_message":"failed connecting to usb","original_error":"Could not retrieve config"}

any help?