A Mic is typically a mono source so recording onto a stereo track will have it either left or right depending on the specific input used. Record on a mono track.
Make sure you’re using the inputs 1 or 2, and use the gain control, also ensure the pad is not engaged. Other wise, if using a DAW you can additionally add gain in the Pre of the recording track. Otherwise you may need a discreet preamp.
This question is too open-ended to answer.
You really should add a bit more background like what kind of mic you are using; are you using Cubase or just the DspMixFX software, (and then recording into what)? This info would save a lot hit and miss Q&A.