Hello! It seems you're facing an issue with the Domino Dreams app on your iPhone where the active challenges aren't showing up. Let's work through it together!

First, let's clarify a few details:
1. Have you made sure that your app is updated to the latest version available on the App Store?
2. Have you tried restarting the app or your iPhone to see if that resolves the issue?
3. Are you connected to a stable internet connection?

Based on what you've shared, here are a few steps you can try:

### Step 1: Check for Updates
- Open the App Store on your iPhone.
- Tap on your profile icon in the top right corner.
- Scroll down to see if there’s an update available for Domino Dreams. If there is, tap Update.

### Step 2: Restart the App
- Close the Domino Dreams app completely by swiping up from the bottom of the screen and removing the app from the list.
- Then, relaunch the app to check if the challenges appear.

### Step 3: Restart Your iPhone
- Hold the side button and volume up/down buttons simultaneously until the power off slider appears.
- Slide it to turn off your iPhone, then turn it back on after a few seconds.

### Step 4: Account Check
- Make sure you're logged into your game account correctly. Sometimes logging out and back in can reset the challenges.

### Step 5: Check for Server Issues
- It's sometimes possible that challenges may not appear due to temporary server issues. You can check the official Domino Dreams Facebook page or forums for any announcements regarding this.

If you’ve tried all of these steps and still don’t see your challenges, it might be best to contact support directly. You can reach Domino Dreams support at: [email protected].

Are you satisfied with the solution I provided, or do you need further assistance?