If you think TGF is missing a new feature that should totally exist, or you have found a bug/problem with TGF, we definitely want to hear about it! Please use the contact page and let us know how we can help improve TGF.
For bugs/errors, please provide us with as much detail as possible. This would include the URL (website link), error messages, what you were trying to do, and so on.
For feature requests, please be as detailed as possible regarding the feature you'd like to see. It will be helpful if you include some background information, such as how this feature would be useful, why you want to see it implemented, and so on.