?Error? Cannot render audio capture stream

Hello, I just bought a Fly Video 2000 FM TV turner card. The version is LifeView TVR Version 3.21.400 I am able to watch cable TV and hear its audio without any issue.
The problem comes when I record a show, in which case I get an error "Error: Cannot render audio capture stream" as soon as I give the record command.
On the recording controls Line In is selected and I have its volumen to the max, aparently the issue is not in the Windows volumen or recording controls.
On the audio settings in the Life View software, next to "Audio Input Source" on the drop down arrow "Line In" is selected, but next to Recording Control
there is just a blank text box. I typed there Line In but when I try to record there is no change. Any suggestions?