Here is a thread from zynga:
Hiya chefs,
In an effort to clean up some issues affecting the performance of our game servers we detected several programs or sources trying to access the application to change the normal game play experience. These programs, modifiers, bots, cheats, hacks, etc. are a violation to Zynga’s Terms of Service, see Usage Rules, and have been affecting all users ability to connect to our servers.
We have implemented code to detect users enhancing their game experience by using programs of this type. Once an account has been detected it will be disabled until the end user contacts our Customer Support team. Accounts disabled may be reset to “normal” game play conditions and be noted for potential suspension if other violations occur.
Our intention is to keep our game world clean of modifiers and enhancement programs as well as optimize the performance for all of our café owners. If you experience any trouble with your Café World account and need assistance please contact our Customer Support team.
Our desire is that everyone that plays Café World have an enjoyable experience and we thank you for your continued support.
The Café World Team
So take care of some negative bots, cheats, and programs. With decent guide, tips and tricks you can have a better cafe world life.