Typing bt I get:
#0 0x32668ebc in objc_msgSend ()
#1 0x0000cf72 in -[LayerPlay dealloc] (self=0x12b0a0, _cmd=0x3196cf2c) at *******/LayerPlay.m:727
#2 0x32d86640 in -[NSObject release] ()
#3 0x32d859ec in CFRelease ()
#4 0x32d53e5c in __CFTypeCollectionRelease ()
#5 0x32d5584c in __CFArrayReleaseValues ()
#6 0x32d556b8 in __CFArrayDeallocate ()
#7 0x32d85ae8 in _CFRelease ()
#8 0x32d859c6 in CFRelease ()
#9 0x33f70cc2 in -[NSCFArray release] ()
#10 0x00018538 in -[CocosNode dealloc] (self=0x120500, _cmd=0x3196cf2c) at *****/cocos2d/CocosNode.m:149
#11 0x00003888 in -[ScenaPlay dealloc] (self=0x120500, _cmd=0x3196cf2c) at ******/ScenaPlay.m:50
#12 0x32d86640 in -[NSObject release] ()
#13 0x0001f5da in -[Director setNextScene] (self=0x11ccc0, _cmd=0x54e80) at ******/cocos2d/Director.m:641
#14 0x0001db1e in -[Director mainLoop] (self=0x11ccc0, _cmd=0x54d48) at *****/cocos2d/Director.m:182
#15 0x33f36d9a in __NSFireTimer ()
#16 0x32da44c2 in CFRunLoopRunSpecific ()
#17 0x32da3c1e in CFRunLoopRunInMode ()
#18 0x31bb9374 in GSEventRunModal ()
#19 0x30bf3c30 in -[UIApplication _run] ()
#20 0x30bf2230 in UIApplicationMain ()
#21 0x00003040 in main (argc=1, argv=0x2ffff520) at ******/main.m:14
Can you help me?