If From email has not been configured and a Joomla menu link to contribution is made it presents a front end error

If you have not configured the from email you can still make links to contribution pages but those pages will present a nasty error message.

Ideally, I think you shouldn't be able to configure a contribution page if he from has not been configured. It could also be dealt with at rendering by changing the error but that seems more like a band aid.