Crash in Mairyporan general store

[Sir Kepi]

Yes I know this has been reported before, but that was back in 2020 and here it is 2021 and still no fix. I bought all the Mairyporan general store had of several food items (I can't remember what exactly) and the game crashed. Now every single time I visit that particular general store, it crashes. Error code follows. Please fix this!
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FATAL ERROR in
action number 1
of Draw Event
for object obj_generalstore:

ds_grid_get argument 3 incorrect type (undefined) expecting a Number (YYGI32)
at gml_Script_generalstore_shop_buy_index_reset
############################################################################################
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stack frame is
gml_Script_generalstore_shop_buy_index_reset (line -1)
gml_Script_generalstore_base_menu
gml_Object_obj_generalstore_Draw_64

EDIT: The crash happens whenever I try to go into the shop menu (could be the buy menu but I think it's just the menu in general) at the Mairyporan general store, not when I just enter the store.