iOS Run on simulator- Ok, run on device - Crash

[namanhams]

I build my application over SDK 3.1.2. When running on the Simulator, everything is fine. But when running on the device, it crashes.
I try to build over SDK 3.0, 3.1 , it also crashes on the device.

Please help.

 

[dejo]

Wirelessly posted (Mozilla/5.0 (iPod; U; CPU iPhone OS 3_1_2 like Mac OS X; en-us) AppleWebKit/528.18 (KHTML, like Gecko) Version/4.0 Mobile/7D11 Safari/528.16)

What do the crash logs say?

 

[dejo]

Wirelessly posted (Mozilla/5.0 (iPod; U; CPU iPhone OS 3_1_2 like Mac OS X; en-us) AppleWebKit/528.18 (KHTML, like Gecko) Version/4.0 Mobile/7D11 Safari/528.16)

Double post