Forgive me, I think I didn’t phrase my response well. I’m not saying anyone is expected to pay, there is no such option or expectation here anyway. But opening with that statement conveyed (to me) a sense of entitlement that could only be justified if you were owed. That doesn’t fit open source software and Grav being free (as in beer) is missing the point. Please be respectful and careful of sounding like you’re making demands.
I also would have ideally thanked you for following up by posting your solution. That’s more than some posters do, though ideally this would be considered normal. Thank you, sincerely!
Good luck finishing the site. There are plenty of smart people here who will be happy to answer polite and detailed questions 