click when note restarts with midi(sub37)

I’m sending midi notes to my sub 37 with Ableton and every time a note is sent I get a click, I’ve tried adjusting the envelopes but nothing seems to work,

Also when playing a not or set of notes with the moog keyboard it wasn’t clicking, only when sending a note from ableton.

Is this a common problem? Or is there some setting that I need to change?