Alright, I'm working on the signup errors. It appears to be hit and miss. I personally can't replicated but I'm upping the dynos on heroku and checking my code.
I often see this with sites that assume a GitHub account has an associated public email, when that is not always true. The Devise gem for Rails has this issue, if you are using that.
I just figured that out and pushed a fix, here's hoping that was it.
Also, "The process is over and you're project will be coming together soon" -> "your project"