As JohnCB says not enough information, however as a guess the microphone is a mono mic and they do normally appear on the left channel only.
You can use the Stereo Processor (Z key) to duplicate the Left channel in to the right - Both=left - and then use the track balance control to position the vocals on the audio stage.
. . . . it comes out distorted and low . . .
Check your recording levels and increase the microphone boost setting - in Audio device, Recording tab - to get the correct level.