Here i listening now you worked on melodies but in medium part very loud DNC Crash. Try to setup the mixer for normal quality

That's a lot of audible clipping... A tip to reduce it is to do gain staging by turning down every volume knob and gradually turning them up again to an appropriate level for each instrument. I usually start with the kick and snare. Another tip is to EQ out unimportant frequencies from your instruments to give room for other instruments.

Okey... well clipping is a kind of distorted noise that occurs when sounds go above 0db and loses part of it's signal. This is especially noticeable after 1:41 in your song but can also be heard when the heavy kicks and snares play throughout the song. You can tell it's gone above 0db if the orange doesn't fit in the visualization.