MYOB keeps crashing

MYOB keeps crashing when trying to create purchases 

AccountRight Application Error Report
=====================================
Application Version: 2023.8.1.2
Application File Version: 2023.8.1.2
Incident Id: 6a1da87d-1088-4e6d-b10c-c55406f62b32
Time: Tuesday, 10 October 2023 2:10:02 pm

Code:
System.NullReferenceException

Message:
Object reference not set to an instance of an object.

Stack Trace
----------------------------------------
1 : System.NullReferenceException
----------------------------------------
System.NullReferenceException: Object reference not set to an instance of an object.
at Huxley.UI.Forms!0x06001124!MYOB.Huxley.UI.Forms.Purchases.EnterPurchasesBase.grdvEnterPurchasesItem_ShowingEditor(Object sender, CancelEventArgs e) +0x14
at DevExpress.XtraGrid.v17.1!0x060006b3!DevExpress.XtraGrid.Views.Base.ColumnView.RaiseShowingEditor() +0x20
at DevExpress.XtraGrid.v17.1!0x060005b4!DevExpress.XtraGrid.Views.Base.ColumnView.get_CanShowEditor() +0x1c
at Huxley.UI.Forms!0x0600112f!MYOB.Huxley.UI.Forms.Purchases.EnterPurchasesBase.grdvEnterPurchasesItem_FocusedColumnChanged(Object sender, FocusedColumnChangedEventArgs e) +0x7
at DevExpress.XtraGrid.v17.1!0x06001639!DevExpress.XtraGrid.Views.Base.FocusedColumnChangedEventHandler.Invoke(Object sender, FocusedColumnChangedEventArgs e)
at DevExpress.XtraGrid.v17.1!0x060006c0!DevExpress.XtraGrid.Views.Base.ColumnView.RaiseFocusedColumnChanged(GridColumn prevFocused, GridColumn focusedColumn) +0x35
at DevExpress.XtraGrid.v17.1!0x060006ad!DevExpress.XtraGrid.Views.Base.ColumnView.DoAfterFocusedColumnChanged(GridColumn prevFocusedColumn, GridColumn focusedColumn) +0xe
at DevExpress.XtraGrid.v17.1!0x060008c3!DevExpress.XtraGrid.Views.Grid.GridView.DoAfterFocusedColumnChanged(GridColumn prevFocusedColumn, GridColumn focusedColumn) +0x4e
at DevExpress.XtraGrid.v17.1!0x060005c2!DevExpress.XtraGrid.Views.Base.ColumnView.set_FocusedColumn(GridColumn value) +0x1e
at DevExpress.XtraGrid.v17.1!0x06000909!DevExpress.XtraGrid.Views.Grid.GridView.OnColumnOptionsChanged(GridColumn column, BaseOptionChangedEventArgs e) +0x1a
at DevExpress.XtraGrid.v17.1!0x0600118e!DevExpress.XtraGrid.Columns.GridColumn.OnOptionsChanged(Object sender, BaseOptionChangedEventArgs e) +0x0
at DevExpress.Data.v17.1!0x06003812!DevExpress.Utils.Controls.BaseOptions.RaiseOnChanged(BaseOptionChangedEventArgs e) +0x8
at DevExpress.Data.v17.1!0x06003811!DevExpress.Utils.Controls.BaseOptions.OnChanged(BaseOptionChangedEventArgs e) +0x15
at DevExpress.XtraGrid.v17.1!0x060016d2!DevExpress.XtraGrid.Columns.OptionsColumn.set_AllowFocus(Boolean value) +0x34
at Huxley.UI.Forms!0x0600110b!MYOB.Huxley.UI.Forms.Purchases.EnterPurchasesBase.RefreshRowColumnsItemLayout(Int32 rowHandle) +0xfe
at Huxley.UI.Forms!0x060010f2!MYOB.Huxley.UI.Forms.Purchases.EnterPurchasesBase.grdvEnterPurchasesItem_FocusedRowChanged(Object sender, FocusedRowChangedEventArgs e) +0x0
at DevExpress.XtraGrid.v17.1!0x06001631!DevExpress.XtraGrid.Views.Base.FocusedRowChangedEventHandler.Invoke(Object sender, FocusedRowChangedEventArgs e)
at DevExpress.XtraGrid.v17.1!0x060006bd!DevExpress.XtraGrid.Views.Base.ColumnView.RaiseFocusedRowChanged(Int32 prevFocused, Int32 focusedRowHandle) +0x42
at Huxley.UI.Controls!0x06000446!MYOB.Huxley.UI.Controls.External.ExtGridView.RaiseFocusedRowChanged(Int32 prevFocused, Int32 focusedRowHandle) +0x24
at DevExpress.XtraGrid.v17.1!0x060006a9!DevExpress.XtraGrid.Views.Base.ColumnView.DoChangeFocusedRowInternal(Int32 newRowHandle, Boolean updateCurrentRow) +0x46
at DevExpress.XtraGrid.v17.1!0x060005ae!DevExpress.XtraGrid.Views.Base.ColumnView.set_FocusedRowHandle(Int32 value) +0x0
at DevExpress.XtraGrid.v17.1!0x060000a1!DevExpress.XtraGrid.Views.Grid.Handler.GridRegularRowNavigator.OnMouseDown(GridHitInfo hitInfo, DXMouseEventArgs e) +0xab
at DevExpress.XtraGrid.v17.1!0x0600011b!DevExpress.XtraGrid.Views.Grid.Handler.GridHandler.OnMouseDown(MouseEventArgs ev) +0x250
at DevExpress.Utils.v17.1!0x06002738!DevExpress.Utils.Controls.BaseHandler.ProcessEvent(EventType etype, Object args) +0xdc
at DevExpress.XtraGrid.v17.1!0x060000e8!DevExpress.XtraGrid.Views.Base.Handler.BaseViewHandler.ProcessEvent(EventType etype, Object args) +0x22
at DevExpress.XtraGrid.v17.1!0x06002170!DevExpress.XtraGrid.GridControl.OnMouseDown(MouseEventArgs ev) +0xb2
at System.Windows.Forms!0x06001249!System.Windows.Forms.Control.WmMouseDown(Message& m, MouseButtons button, Int32 clicks) +0x95
at System.Windows.Forms!0x06001260!System.Windows.Forms.Control.WndProc(Message& m) +0x611
at DevExpress.XtraEditors.v17.1!0x06001445!DevExpress.XtraEditors.Container.EditorContainer.WndProc(Message& m) +0x67
at DevExpress.XtraGrid.v17.1!0x0600214e!DevExpress.XtraGrid.GridControl.WndProc(Message& m) +0xbb
at System.Windows.Forms!0x060063eb!System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m) +0x0
at System.Windows.Forms!0x060063ee!System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m) +0x8e
at System.Windows.Forms!0x0600314d!System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam) +0x25
==========
MODULE: DevExpress.Data.v17.1 => DevExpress.Data.v17.1, Version=17.1.7.0, Culture=neutral, PublicKeyToken=b88d1754d700e49a; G:c597b0b271194ce8abea3ba53fea2fef; A:1
MODULE: DevExpress.Utils.v17.1 => DevExpress.Utils.v17.1, Version=17.1.7.0, Culture=neutral, PublicKeyToken=b88d1754d700e49a; G:b8c34c059b804930811d5f6d50999b6c; A:1
MODULE: DevExpress.XtraEditors.v17.1 => DevExpress.XtraEditors.v17.1, Version=17.1.7.0, Culture=neutral, PublicKeyToken=b88d1754d700e49a; G:6df94e55f5bd4444b910d4b2a37076a4; A:1
MODULE: DevExpress.XtraGrid.v17.1 => DevExpress.XtraGrid.v17.1, Version=17.1.7.0, Culture=neutral, PublicKeyToken=b88d1754d700e49a; G:6a6f2858c181409aa7c4eb6bd501ac5f; A:1
MODULE: Huxley.UI.Controls => Huxley.UI.Controls, Version=2023.8.1.2, Culture=neutral, PublicKeyToken=947f70fecdd4159f; G:a4d78131717444b986fdaa3eaff6be13; A:1
MODULE: Huxley.UI.Forms => Huxley.UI.Forms, Version=2023.8.1.2, Culture=neutral, PublicKeyToken=947f70fecdd4159f; G:66beabdf2cf646c38651d7453995b917; A:1
MODULE: System.Windows.Forms => System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089; G:4f38ceb21d204c87b3ee28d3e54c7dcb; A:1

----------------------------------------