No.
There isn't any cheats for Mafia Wars or Mob Wars anymore since Zynga updated them.
Most likely a lag in the mafia wars system. Happens all of us
Mafia Wars is a multiplayer browser game created by Zynga.
You can't actually sell inventory items in Mafia Wars. So I am afraid you are stuck with it.
Zynga does in fact offer a few varieties of internet games such as, Zynga Poker (texas hold'em), black jack, farmville, and Mafia Wars, all of which are commonly played on the social network site Facebook.
You have to set it up yourself, or you can buy one. However either method is against both facebook and zynga T.O.S.
How can I get more energy on facebook mafia wars?
No there shouldn't be because Zynga requested certain people who were using them to stop but you never know there probably still are some.
This is not a problem with internet explorer, this is not a Flash Player bug. This a bug with Zynga or Facebook and is something you cannot fix.
I have tried on Mafia Wars and with no luck you could try other games but I'm willing to bet anything by Zynga will not work.
zynga
Zynga deleted and got rid of any cheats there used to be for Mafia Wars so there isn't any. but there are ways of making the game easier like increasing your mafia with the code 2901819236