stream micro-interrumptions

[officialsm]

Hi,
tried with usb-pen album in FLAC.
No micro-interrumptions but two times during listening the system goes muted. The playback still goes, i can see time and track that goes but there is NO SOUND. I totally muted. If i try to vhange fil, alvum or switch to radio listening it remains muted (muted but volume is high).
In syslog i have this errors:

Feb 22 11:41:25 Simoode-audio kernel: [ 573.083792] usb 1-1.4: cannot submit urb (err = -19)
Feb 22 11:41:25 Simoode-audio kernel: [ 573.083810] usb 1-1.4: USB disconnect, device number 4
Feb 22 11:41:26 Simoode-audio kernel: [ 573.396669] usb 1-1.4: new high-speed USB device number 5 using xhci_hcd
Feb 22 11:41:26 Simoode-audio kernel: [ 573.527383] usb 1-1.4: New USB device found, idVendor=22e8, idProduct=ca02, bcdDevice= 6.15
Feb 22 11:41:26 Simoode-audio kernel: [ 573.527392] usb 1-1.4: New USB device strings: Mfr=1, Product=3, SerialNumber=0
Feb 22 11:41:26 Simoode-audio kernel: [ 573.527399] usb 1-1.4: Product: CA CXA81 2.0
Feb 22 11:41:26 Simoode-audio kernel: [ 573.527405] usb 1-1.4: Manufacturer: CA
Feb 22 11:41:26 Simoode-audio kernel: [ 573.611274] usb 1-1.4: 1:3 : unsupported format bits 0x100000000
Feb 22 11:41:26 Simoode-audio mtp-probe: checking bus 1, device 5: "/sys/devices/platform/scb/fd500000.pcie/pci0000:00/0000:00:00.0/0000:01:00.0/usb1/1-1/1-1.4"
Feb 22 11:41:26 Simoode-audio mtp-probe: bus: 1, device: 5 was not an MTP device
Feb 22 11:41:26 Simoode-audio mtp-probe: checking bus 1, device 5: "/sys/devices/platform/scb/fd500000.pcie/pci0000:00/0000:00:00.0/0000:01:00.0/usb1/1-1/1-1.4"
Feb 22 11:41:26 Simoode-audio mtp-probe: bus: 1, device: 5 was not an MTP device

How cai i fix it?