I tried and the program in the arena gave this:
I'm sorry, but an uncaught exception occurred.
While running game code:
  File "game/code/core/items/chars_equipment.rpy", line 93, in script
    $ result = ui.interact()
  File "game/code/core/items/chars_equipment.rpy", line 93, in <module>
    $ result = ui.interact()
  File "game/code/core/items/chars_equipment.rpy", line 373, in execute
    screen char_equip():
  File "game/code/core/items/chars_equipment.rpy", line 373, in execute
    screen char_equip():
  File "game/code/core/items/chars_equipment.rpy", line 418, in execute
    if not isinstance(eqtarget, PytGroup):
  File "game/code/core/items/chars_equipment.rpy", line 421, in execute
    use group_equip_left_frame()
  File "game/code/core/items/chars_equipment.rpy", line 633, in execute
    screen group_equip_left_frame():
  File "game/code/core/items/chars_equipment.rpy", line 633, in execute
    screen group_equip_left_frame():
  File "game/code/core/items/chars_equipment.rpy", line 689, in execute
    use char_equip_right_frame()
  File "game/code/core/items/chars_equipment.rpy", line 691, in execute
    screen char_equip_right_frame():
  File "game/code/core/items/chars_equipment.rpy", line 691, in execute
    screen char_equip_right_frame():
  File "game/code/core/items/chars_equipment.rpy", line 842, in execute
    frame:
  File "game/code/core/items/chars_equipment.rpy", line 846, in execute
    has vbox spacing 1 xalign .5
  File "game/code/core/items/chars_equipment.rpy", line 847, in execute
    hbox:
  File "game/code/core/items/chars_equipment.rpy", line 850, in execute
    button:
  File "game/code/core/items/chars_equipment.rpy", line 850, in keywords
    button:
  File "game/code/core/characters/groups.rpy", line 92, in __getitem__
    return self._defer(arr=[d[k] for d in self.lst])
  File "game/code/core/characters/groups.rpy", line 55, in _defer
    renpy.error("%s\n%s\n%s" % (at, str(typical), str(arr)))
Exception: inventory.final_sort_filter[]
<type 'basestring'>
[u'id', u'amount', u'id']
-- Full Traceback ------------------------------------------------------------
Full traceback:
  File "game/code/core/items/chars_equipment.rpy", line 93, in script
    $ result = ui.interact()
  File "C:\!_BURN_DVD\PyTFall\renpy\ast.py", line 896, in execute
    renpy.python.py_exec_bytecode(self.code.bytecode, self.hide, store=self.store)
  File "C:\!_BURN_DVD\PyTFall\renpy\python.py", line 1929, in py_exec_bytecode
    exec bytecode in globals, locals
  File "game/code/core/items/chars_equipment.rpy", line 93, in <module>
    $ result = ui.interact()
  File "C:\!_BURN_DVD\PyTFall\renpy\ui.py", line 289, in interact
    rv = renpy.game.interface.interact(roll_forward=roll_forward, **kwargs)
  File "C:\!_BURN_DVD\PyTFall\renpy\display\core.py", line 2690, in interact
    repeat, rv = self.interact_core(preloads=preloads, trans_pause=trans_pause, **kwargs)
  File "C:\!_BURN_DVD\PyTFall\renpy\display\core.py", line 3074, in interact_core
    root_widget.visit_all(lambda i : i.per_interact())
  File "C:\!_BURN_DVD\PyTFall\renpy\display\core.py", line 534, in visit_all
    d.visit_all(callback, seen)
  File "C:\!_BURN_DVD\PyTFall\renpy\display\core.py", line 534, in visit_all
    d.visit_all(callback, seen)
  File "C:\!_BURN_DVD\PyTFall\renpy\display\core.py", line 534, in visit_all
    d.visit_all(callback, seen)
  File "C:\!_BURN_DVD\PyTFall\renpy\display\screen.py", line 424, in visit_all
    callback(self)
  File "C:\!_BURN_DVD\PyTFall\renpy\display\core.py", line 3074, in <lambda>
    root_widget.visit_all(lambda i : i.per_interact())
  File "C:\!_BURN_DVD\PyTFall\renpy\display\screen.py", line 434, in per_interact
    self.update()
  File "C:\!_BURN_DVD\PyTFall\renpy\display\screen.py", line 619, in update
    self.screen.function(**self.scope)
  File "game/code/core/items/chars_equipment.rpy", line 373, in execute
    screen char_equip():
  File "game/code/core/items/chars_equipment.rpy", line 373, in execute
    screen char_equip():
  File "game/code/core/items/chars_equipment.rpy", line 418, in execute
    if not isinstance(eqtarget, PytGroup):
  File "game/code/core/items/chars_equipment.rpy", line 421, in execute
    use group_equip_left_frame()
  File "game/code/core/items/chars_equipment.rpy", line 633, in execute
    screen group_equip_left_frame():
  File "game/code/core/items/chars_equipment.rpy", line 633, in execute
    screen group_equip_left_frame():
  File "game/code/core/items/chars_equipment.rpy", line 689, in execute
    use char_equip_right_frame()
  File "game/code/core/items/chars_equipment.rpy", line 691, in execute
    screen char_equip_right_frame():
  File "game/code/core/items/chars_equipment.rpy", line 691, in execute
    screen char_equip_right_frame():
  File "game/code/core/items/chars_equipment.rpy", line 842, in execute
    frame:
  File "game/code/core/items/chars_equipment.rpy", line 846, in execute
    has vbox spacing 1 xalign .5
  File "game/code/core/items/chars_equipment.rpy", line 847, in execute
    hbox:
  File "game/code/core/items/chars_equipment.rpy", line 850, in execute
    button:
  File "game/code/core/items/chars_equipment.rpy", line 850, in keywords
    button:
  File "<screen language>", line 854, in <module>
  File "game/code/core/characters/groups.rpy", line 92, in __getitem__
    return self._defer(arr=[d[k] for d in self.lst])
  File "game/code/core/characters/groups.rpy", line 55, in _defer
    renpy.error("%s\n%s\n%s" % (at, str(typical), str(arr)))
  File "C:\!_BURN_DVD\PyTFall\renpy\exports.py", line 2390, in error
    _error_handlers[-1](msg)
  File "C:\!_BURN_DVD\PyTFall\renpy\exports.py", line 2367, in _error
    raise Exception(msg)
Exception: inventory.final_sort_filter[]
<type 'basestring'>
[u'id', u'amount', u'id']
Windows-7-6.1.7601-SP1
Ren'Py 7.2.1.457
PyTFall 0.72 and take their shit...
Sat May 25 03:56:15 2019