[Python] Can't bind a custom event to the on_resize function in kivy

I am trying to build an app where on one screen within a portion of it there will be a buttons that is dependent on how many "folders" the user creates, I want there to be a dynamic number of cols in the gridLayout that will hold these buttons and the number of cols should change based on the size of the window

My kv file for the app contains:

ScrollView:
do_scroll_x: False
do_scroll_y: True
scroll_distance: "50dp"
FolderGridLayout:
spacing: 20 # Add spacing between the buttons
padding: [20, 0, 20, 20] # Add padding around the GridLayout
id: folderGrid
cols: 5
size_hint: (1, None)
height: self.minimum_height
row_default_height: "100dp"
row_force_default: True
Button:
text: "Placeholder"
size_hint_x: None
width: "200dp"
Button:
text: "Placeholder"
size_hint_x: None
width: "200dp"
Button:
text: "Placeholder"
size_hint_x: None
width: "200dp"
Button:
text: "Placeholder"
size_hint_x: None
width: "200dp"
Button:
text: "Placeholder"
size_hint_x: None
width: "200dp"
Button:
text: "Placeholder"
size_hint_x: None
width: "200dp"
Button:
text: "Placeholder"
size_hint_x: None
width: "200dp"
Button:
text: "Placeholder"
size_hint_x: None
width: "200dp"


and in my py file I have:

class FolderGridLayout(GridLayout):
def __init__(self, **kwargs):
super(FolderGridLayout, self).__init__(**kwargs)
Window.bind(on_resize=self.adjust_cols)


def adjust_cols(self, instance, window_width, window_height):
gridLayout = self.ids["folderGrid"]
print(gridLayout, "window_width, window_height")
btnWidth = dp(200)
spacing = dp(20)
padding = dp(20)
availableSpace = window_width - 2 * padding
cols = max(1, int(availableSpace / (btnWidth + spacing))) # Ensure there is at least one column
gridLayout.cols = cols


But every time I resize the window I get a bunch of system errors from kivy I can't seem to find much online about how to solve this I've looked at the docs and googled a bunch

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