This is reply from Rovio

Player Support Team (Angry Birds Friends)

Aug 8, 12:07 UTC

Hello,

and thanks for getting back at us.

We have submitted the fixed version to Apple and it’s waiting for their review. Once that’s done it will be pushed live to the stores. As this issue is only affecting the mobile version of the game, you can see your…[Read more]

I also have the same problem. Been like this a week. Reported it to Rovio twice.

Neither do I. It has become boring. The thrill is gone.

I made it only once. Always loose when I get to round 4 or 5. The game has lost it thrill for me. Constantly repeating the same levels. Need to come to an end.

Same here on mini iPad 4

Same here in mini iPad 4

Rovio fixed it. At least I am back to normal.

Unable to play on iPad today. Keeps crashing.
Update.
It worked this morning. What about all the wingman I lost during the crash?
Update.
Back to crashing. It started when Rovio did the scheduled update 2 days ago,

Unable to play on iPad today. Keeps crashing.
Update.
It worked this morning. What about all the wingman I lost during the crash?

Unable to play on iPad today. Keeps crashing.

Haven’t been able to play a game today. Keeps crashing..

It’s time to get a new game. The thrill is gone. I agree about the usage of power ups.

Contact Rovio customer service.