Using device 0: Generic RTL2832U OEM

hello, i am new to Rpi 5 and i get this error, how I fix this?
I am using USB-C 3.1 cable those should be able to handle the speed and power to to Rpi and Krakensdr.

Thank.
Roger

Using device 0: Generic RTL2832U OEM
usb_claim_interface error -6
Failed to open rtlsdr device #0.
krakenrf@krakensdr:~ $ kraken_test^C

Are you using the ready to use image?

By default the image automatically starts the Kraken software on boot. This means that kraken_test cannot access the tuners because they are in use by the Kraken software.

If you want to stop the Kraken software browse to the krakensdr_doa folder, and run ./kraken_doa_stop.sh