What particular problem was voiced? I kinda missed it. Bad English is correctable and even games from native speakers have them, so I don't think that should be a cause for stopping development. Otherwise, for story development, you might want to look at https://discord.me/writersblock where people do help out with writing.
Otherwise, if it is a problem with the gameplay itself, you can simply go back to drawing board. Since you have a prototype you can plug in an replacement engine, saving yourself time.