If you find an Active quest too difficult, you can replace it with another one.

Tap on the “QUESTS” button on the main screen. There, you can scroll down to the “Active quests” section. To replace a quest, click on the green arrows button in the right corner of the quest. A pop-up window will appear, asking you to pay 120 gems. If you’d like to proceed, click “CONFIRM”.
You can replace as many quests as you would like.

If you replace the quest, know that:

• New quests will not be the same as the current ones.
• New quests you get might be the ones you have already completed.
• The requirements of the new quests will be relevant to the remaining time of the quest season.