not working

hi,
this is not working for my website.
it did not add any of the custom messages in the message tab that you had given in the screen shot like “error messages for your name field”,”error messages for your email field” etc.,

and should i add these fields to message tab on my own?if it is how to?
this plugin is also not up to date with my wpversion.mine is 4.6.1. is that the reason why its not working?

please reply.