What are you doing to get that error? Because it doesn't look like a renpy error.
I just downloaded/updated the game and tried to start it.
I am running on Linux(uname -a: Linux pc 6.5.4-arch2-1 #1 SMP PREEMPT_DYNAMIC Thu, 21 Sep 2023 11:06:39 +0000 x86_64 GNU/Linux)
If i interpret the response correctly, there is some uninitialized integer value.(Maybe use of some value out of context? I am not that familiar with python.)