Had to change to sys.stdout.write to actually see the log. Eileen is the culprit, and specifically, story_6. If I execute the code in that function by hand, it fails at Check_Req(ev_var) in line 90 with self.story == 6.
Digging in further, the call to player_inv.qty(AliceOutfit) returns None, rather than 0 as one might reasonably expect.
I suspect the fix is as simple as
def qty(self, item):
for i in self.inv:
if i[0] == item:
return i[1] # returns quantity
return 0
unless there's some reason to return NoneType instead of 0 for that function.
At least that keeps the exception from happening. I'm assuming that it will eventually get added to the inventory as expected when I do whatever thing I need to do.
Well, I guess it isn't quite that simple. Four spots in the code are expecting None (in my_events.rpy, 01_asara.rpy, and two spots in worldmap.rpy), and should also be adjusted to check for 0. But that's probably a better fix than trying to handle NoneType everywhere that a numeric value would normally be expected.
The game is built with renpy 7.7.0 which uses python 2, not 3. It doesn't error out when None is returned instead of int. Well, shouldn't at least.
I know it's what the error says, but there's no way that is the actual issue. It works for everyone else, in all the examples you posted. Try using vars(e_story6) and checking the var_req and others