Update: I should mention when I edited the Units.txt file I did change the Settler unit to build a Granary as an initial structure the city comes with. Like how the Urban Planner and Sea Settler automatically construct like 6 buildings when they set up a city. The theme being that a granary is a staple of society, and you only have to rebuild it if something blows it up.
I don't see why this would cause the game to crash though, when the Disbanded city went to produce a settler. The HutCity doesn't come with a granary because it wasn't settled by a Settler unit - but nevertheless it shouldn't matter.
As a temporary fix for my own mod/game, I removed the chance (to 0%) of a Hut producing a city and gave that chance instead to the free Settler Unit. That's what I would have wanted in the first place, and it doesn't matter because if I didn't want a city somewhere id just disband it and move it anyway.
But that City Resources tab/window is an absolute requirement for this game. I don't see how its possible to even enjoy the game without it. Every civilization game has it except for this one. Would it be something to put in the SLC files?