Hello everyone, I wanted to tell you about my situation and if you can provide me with any advice or help. 

I have about 4 months ago my Marshall CODE 25 because I liked its characteristics and its comfortably to play in home.
but now I tried to connect it with my pc to use it as an interface and I couldn't, becouse it dosen't appaers in my daw.
When I put the usb cable, the guitar did not sound in the amp and I assumed that because the sound would go to my pc, 
but when I took it out, my guitar did not sound,it does not pick up my guitar. 
I tried his bluethooth function and my amp plays the sound of my phone.
Maybe conect the cable usb make some mistake in the software, i don't
now
I've tried turning it on and off several times and resetting the amp. Please I would appreciate
a lot if you could give me any helpful information as I tried my best to have it and i worked hard to have 
that amp.