I didn't see a specific thread addressing iPhone version problems although several others have posted in different threads regarding the issues. So here's the official iPhone v1.10 thread...
The issue appears after v1.10 update is installed.
It affects iPhone 3GS (confirmed), 4 (confirmed), and possibly 3G (Unconfirmed)
Problem description: Game locks and/or crashes at the following events
1 - Player clicks the option to Sell a creation
2 - Player clicks the option to go to "Collection" from the main screen
As it sits now, the game is unplayable. I have seen that the iPad version problem has been addressed. Anything in the works for the iPhone version?
Anyone else having these issues?

Please help.

I didn't find the right solution from the Internet.

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