'AdvancedFilterQueryForm' object has no attribute 'cleaned_data'

[Aref20]

Hi,

I have this issue when clicking the filter button. How can I fix it?

The error in this code is inside the formset file.

def _should_delete_form(self, form):
    """Return whether or not the form was marked for deletion."""
    return form.cleaned_data.get(DELETION_FIELD_NAME, False)