Quest for Cold Storage and Heaven's Mandate not active?

[SkinWhite]

I am now stuck in my Soul Boost because I can't take the daily quest for Cold Storage and Heaven's Mandate. Its says " Unable to accept - THE PATH OF DARK ARTS - Not completed " can someone help me on this?

I already done all my MAIN QUEST. Currently, I'm on Chapter 11 " Wait for more information "

What quest should be done to get the daily Cold Storage and HM quest for SB?