Okay. I get what you're saying. Here's what I'm saying:
1) I appreciate the work you put into this very fast and good looking system.
2) I've lost confidence in it since you promise a working phpbb 3 converter and there is none. I followed your instructions and went back to php 5.6 and version 7.57. It's error after error.
3) I've wasted multiple hours on this and your suggestion is I waste more hours on it.

I think at this point I deserve a refund. You're promising what you don't have - working converters. My plan now is to use SMF for a while and wait for you to finish the code, and then sign up again when you're ready.