URGENT: Whats wrong with this code? (objective-c)?

[burhan]

-(void)otherGames
{
UIAlertView *alertMsg = [[UIAlertView alloc]
initWithTitle"This gGame was Developed By:"
message"Burhan uddin Raizada"
delegate:nil
cancelButtonTitle"Dismiss"
otherButtonTitles: @"@twitter" , nil];
[alertMsg show];

}

-(void)alertMsg:(UIAlertView *)alertMsg clickedButtonAtIndex:(NSInteger)buttonIndex {

if (buttonIndex == 1) {
NSString *containingURL = [[NSString alloc] initWithFormat"http://www.twitter.com/brhanheck"];
[[UIApplication sharedApplication] openURL:[NSURL URLWithString: containingURL]];
}
}
the first alertmsg is working absolutely fine. but when i added a like to the new "@twitter" button, then it just doesn't work. otherwise everything is working fine. i am wondering why it doesn't, but it should..need help.