farm heroes always seem to hang

Welcome to our Community @annahairam

Do you mind telling me if you're playing on mobile or on PC? If on PC, do you know if you have the new HTML5 version or Flash?

Have you checked for available updates and do you have enough storage available on the device?

If yes, then your next option is to reinstall the game app in order to get rid of any bugs/issues. 

It usually fixes most issues (please note that any progress on the mobile device that has not been synchronized with Facebook/King account at this stage will be lost.

However, all the progress that is currently saved on Facebook/King account can easily be retrieved, once you have reconnected the device successfully). 

Regrettably, you will lose any saved boosters and messages. I would recommend using these up before re-installing, if possible.