Daily Bounty Halloween Event Glitch

[barren sluice]

Back from the Halloween event I accepted two daily bounties but never completed them and they are still active, now I can only accept one daily bounty for the Winter event. One of the challenges is to kill Pumpkintiles in coop. Is there any way to fix this issue?

[outer zephyr]

Go to the chapter section where you are your inventory, map etc

You can cancel challenges there even old ones