"Error Resource temporarily unavailable Cannot lock port" UART Error in nRF5340 Audio DK.

Hi,

I'm using nrf5340 audio dk board. I configured UART0 with the help of nrf connect fundamental course - Link and I started transmitting the data in UART. But after sometime it stopped and shows "Error Resource temporarily unavailable Cannot lock port". Can anyone help me with this.



Thanks and Regards
Lakshmanan